{"title":"Fuel Injector Harnesses","description":null,"products":[{"product_id":"j4-connector-harness","title":"Holley EFI 558-404 J4 Auxiliary Connector \u0026 Harness — Dominator EFI Expansion","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUnlock Advanced Control with the Holley J4 Harness\u003c\/h2\u003e\u003cp\u003eThe Holley EFI 558-404 J4 auxiliary harness is the key to unlocking the full potential of your Dominator EFI system. Designed for users who need to add custom sensors, switches, or additional outputs, this harness provides the necessary connection points to expand your engine management capabilities. Whether you are adding nitrous control, boost solenoids, or custom data logging sensors, the J4 harness is your foundation.\u003c\/p\u003e\u003ch3\u003eAdvanced Features for Custom Builds\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDominator Compatibility:\u003c\/strong\u003e Specifically engineered for the J4 port on Holley Dominator ECUs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable I\/O:\u003c\/strong\u003e Provides easy access to auxiliary inputs and outputs for complex tuning setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Wiring:\u003c\/strong\u003e Constructed with automotive-grade wire and sealed connectors to ensure long-term durability in high-vibration environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomization Ready:\u003c\/strong\u003e Allows for a clean, professional installation of aftermarket sensors and control devices.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUsing the 558-404 harness allows you to maintain a tidy engine bay while adding sophisticated control features to your vehicle. By utilizing the factory-specified J4 port, you ensure that your added components are integrated properly into the ECU software, allowing for seamless configuration within the Holley EFI software suite. For serious tuners and performance builders, this harness is an indispensable tool for advanced engine management. Experience superior technical support and high-quality parts for your next project at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI 558-404 J4 Auxiliary Connector \u0026 Harness \\u2014 Dominator EFI Expansion\",\"description\":\"Expand your Dominator EFI capabilities with the Holley 558-404 J4 auxiliary harness. 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Order yours from GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-404\",\"url\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness\",\"offers\":{\"@type\":\"Offer\",\"price\":\"229.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness\",\"sku\":\"GVMR_558-404\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI 558-404 J4 Auxiliary Connector \u0026 Harness \\u2014 Dominator EFI Expansion\",\"item\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI 558-404 J4 Auxiliary Connector \u0026 Harness \\u2014 Dominator EFI Expansion fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI 558-404 J4 Auxiliary Connector \u0026 Harness \\u2014 Dominator EFI Expansion?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eExpand Your Dominator EFI Capabilities with the J3 Harness\u003c\/h2\u003e\u003cp\u003eThe Holley EFI 558-403 J3 auxiliary input\/output harness is designed to provide maximum flexibility for your Dominator EFI system. If you are looking to integrate additional sensors, switches, or control outputs, this harness is the professional solution. It allows you to tap into the advanced features of the Dominator ECU, enabling custom configurations that go far beyond basic engine management.\u003c\/p\u003e\u003ch3\u003eWhy Integrate the J3 Harness?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated I\/O Access:\u003c\/strong\u003e Provides direct access to the J3 port, allowing for expanded sensor and control functionality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-Spec Quality:\u003c\/strong\u003e Built with high-temperature wiring and sealed connectors to ensure reliable operation in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Perfect for adding cooling fans, fuel pump triggers, or specialized data logging inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Installation:\u003c\/strong\u003e Eliminates the need for messy splicing, providing a factory-look finish to your custom wiring project.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are setting up a complex race car or a highly modified street vehicle, the 558-403 harness ensures that your auxiliary components communicate perfectly with your ECU. By keeping your wiring organized and secure, you reduce the risk of electrical faults and improve the overall reliability of your EFI setup. Trust GGCRACING to provide the professional-grade components you need to take your engine management to the next level.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI 558-403 J3 Auxiliary Input\/Output Connector \u0026 Harness \\u2014 Dominator EFI\",\"description\":\"Add custom I\/O to your Dominator EFI with the Holley 558-403 J3 harness. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI 558-403 J3 Auxiliary Input\/Output Connector \u0026 Harness \\u2014 Dominator EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/PQz8SPE4woI\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eExpand Your Terminator EFI System\u003c\/h2\u003e\u003cp\u003eThe Holley EFI Terminator I\/O Wiring Harness Kit is the perfect addition for those looking to add more functionality to their Terminator EFI setup. This harness allows you to easily integrate additional inputs and outputs, such as cooling fans, fuel pumps, or custom sensor data, giving you greater control over your vehicle's electronic systems. It is built to the same high standards as all Holley EFI components, ensuring long-term durability.\u003c\/p\u003e\u003ch3\u003eWhy Choose This I\/O Harness?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for Holley Terminator EFI systems\u003c\/li\u003e\n\u003cli\u003eFacilitates easy addition of auxiliary inputs and outputs\u003c\/li\u003e\n\u003cli\u003eHigh-quality materials for reliable performance\u003c\/li\u003e\n\u003cli\u003eSimplifies complex wiring tasks for custom builds\u003c\/li\u003e\n\u003cli\u003eEssential for advanced engine management configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are adding a trans-brake, nitrous activation, or simply need more sensor inputs, this I\/O harness makes the process straightforward and clean. Avoid the headache of custom-built wiring and rely on a proven solution designed for your specific EFI platform. Improve your engine's versatility and control with this essential upgrade. Find all your performance wiring needs at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Terminator I\/O Wiring Harness Kit \\u2014 Input\/Output Expansion\",\"description\":\"Expand your Holley Terminator EFI system with the I\/O Wiring Harness Kit. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Terminator I\/O Wiring Harness Kit \\u2014 Input\/Output Expansion?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880361865300,"sku":"GVMR_558-420","price":50.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-420.jpg?v=1714510323"},{"product_id":"injector-wiring-harness-v8-bosch-style-injectors","title":"Holley EFI Injector Wiring Harness - V8 Bosch Style Injectors for Dominator EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/mJ77Le4zOrg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Connection for Your Holley Dominator EFI System\u003c\/h2\u003e\u003cp\u003eEnsure flawless communication and power delivery to your V8 Bosch style fuel injectors with the Holley EFI Injector Wiring Harness. This purpose-built harness is an essential component for any high-performance build utilizing Holley Dominator EFI, providing a direct, secure, and reliable connection. Engineered to meet the rigorous demands of performance applications, it guarantees that your injectors receive precise signals, critical for optimal fuel atomization and engine efficiency.\u003c\/p\u003e\u003ch3\u003eKey Features for Reliable Injector Control\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eV8 Bosch Style Injector Compatibility:\u003c\/b\u003e Specifically designed for seamless integration with common Bosch style fuel injectors found in many V8 applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHolley Dominator EFI Ready:\u003c\/b\u003e Optimized for direct plug-and-play connection with Holley Dominator EFI systems, ensuring perfect electrical compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Quality Construction:\u003c\/b\u003e Manufactured with premium-grade wiring and connectors, built to withstand the harsh under-hood environment of performance vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure Connections:\u003c\/b\u003e Features robust, locking connectors that prevent accidental disconnections due to vibration or extreme conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimplified Installation:\u003c\/b\u003e Designed for straightforward routing and connection, reducing installation time and complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Signal Integrity:\u003c\/b\u003e Ensures clean, uninterrupted signals to your injectors, preventing misfires and promoting consistent engine operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCritical for Optimal Fuel Delivery\u003c\/h3\u003e\u003cp\u003eThe injector wiring harness is a vital link in your EFI system, responsible for transmitting precise commands from your ECU to your fuel injectors. A compromised or inferior harness can lead to inconsistent fuel delivery, affecting engine performance, drivability, and even reliability. The Holley EFI Injector Wiring Harness eliminates these concerns, providing the robust electrical pathway needed for your Dominator EFI system to accurately control fuel flow, ensuring your engine runs at its peak potential under all conditions.\u003c\/p\u003e\u003ch3\u003eWhy Choose Holley EFI Wiring?\u003c\/h3\u003e\u003cp\u003eWhen it comes to your engine's critical components, don't settle for anything less than Holley EFI quality. This injector harness is a testament to Holley's commitment to performance and reliability, ensuring your V8 Bosch style injectors perform flawlessly with your Dominator EFI system. Trust GGCRACING for all your Holley EFI wiring and components.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Injector Wiring Harness - V8 Bosch Style Injectors for Dominator EFI\",\"description\":\"Connect your V8 Bosch style injectors to Holley Dominator EFI with this premium wiring harness. Ensures reliable, precise fuel delivery. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-200\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors\",\"offers\":{\"@type\":\"Offer\",\"price\":\"204.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors\",\"sku\":\"GVMR_558-200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Injector Wiring Harness - V8 Bosch Style Injectors for Dominator EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Injector Wiring Harness - V8 Bosch Style Injectors for Dominator EFI fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Injector Wiring Harness - V8 Bosch Style Injectors for Dominator EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880370581588,"sku":"GVMR_558-200","price":190.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-200.jpg?v=1714511054"},{"product_id":"injector-wiring-harness-v8-ev6-style-injectors","title":"Holley EFI 558-201 V8 Injector Wiring Harness — For EV6 Style Injectors \u0026 Dominator EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eOptimize Your V8 Fuel Delivery with Holley EFI EV6 Injector Harness\u003c\/h2\u003e\u003cp\u003eEnsure flawless fuel delivery and precise engine control for your V8 engine utilizing EV6 style injectors with the \u003cstrong\u003eHolley EFI 558-201 Injector Wiring Harness\u003c\/strong\u003e. This purpose-built harness is meticulously designed for seamless integration with Holley Dominator EFI systems, providing a dedicated and reliable connection that maximizes the performance and efficiency of your fuel injection setup.\u003c\/p\u003e\u003ch3\u003ePrecision-Engineered for V8 EV6 Applications\u003c\/h3\u003e\u003cp\u003eThe Holley EFI 558-201 harness is engineered specifically for V8 engines equipped with EV6 style fuel injectors, offering a direct-fit solution that eliminates the complexities of generic wiring. Each connector and wire length is optimized to ensure perfect fitment and signal integrity, which is crucial for consistent fuel atomization and engine response. Constructed from high-quality, durable automotive-grade materials, this pre-terminated harness is built to withstand the rigorous demands of high-performance V8 applications, guaranteeing long-term reliability and consistent operation under all conditions. It's the ideal choice for ensuring your Dominator EFI system communicates flawlessly with your injectors.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eV8 Specific Design:\u003c\/b\u003e Pre-terminated for V8 engines, ensuring optimal fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEV6 Injector Compatibility:\u003c\/b\u003e Specifically designed for EV6 style fuel injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDominator EFI Optimized:\u003c\/b\u003e Engineered for seamless integration with Holley Dominator EFI systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReliable Performance:\u003c\/b\u003e High-grade wiring and connectors ensure consistent fuel delivery and signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimplified Installation:\u003c\/b\u003e Direct-fit design reduces installation time and complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e Holley EFI 558-201\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Injector wiring harness for V8 engines with EV6 style injectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Compatibility:\u003c\/b\u003e Holley Dominator EFI systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInjector Style:\u003c\/b\u003e EV6\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose the Holley EFI 558-201?\u003c\/h3\u003e\u003cp\u003eFor V8 owners running EV6 style injectors with a Holley Dominator EFI system, the 558-201 harness is an essential upgrade. Its precise engineering ensures that your fuel injectors receive accurate signals, leading to improved engine performance, better throttle response, and enhanced fuel efficiency. Don't compromise on your fuel system's integrity with ill-fitting or generic wiring. Invest in the dedicated solution that provides reliability and peak performance. Trust GGCRACING to deliver the specialized Holley EFI components your V8 build demands for superior results.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI 558-201 V8 Injector Wiring Harness \\u2014 For EV6 Style Injectors \u0026 Dominator EFI\",\"description\":\"Connect your V8 EV6 style injectors seamlessly with the Holley EFI 558-201 wiring harness. Optimized for Dominator EFI systems. Shop GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-201\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors\",\"offers\":{\"@type\":\"Offer\",\"price\":\"182.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors\",\"sku\":\"GVMR_558-201\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI 558-201 V8 Injector Wiring Harness \\u2014 For EV6 Style Injectors \u0026 Dominator EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI 558-201 V8 Injector Wiring Harness \\u2014 For EV6 Style Injectors \u0026 Domina fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI 558-201 V8 Injector Wiring Harness \\u2014 For EV6 Style Injectors \u0026 Domina?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880371335252,"sku":"GVMR_558-201","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-201.jpg?v=1714511162"},{"product_id":"injector-harness-16-injectors-unterminated","title":"Holley EFI 16-Injector Wiring Harness — Unterminated for Bosch EV1","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/bdSFZtvGNMo\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eCustom Fuel System Solutions for High-Performance Builds\u003c\/h2\u003e\u003cp\u003eThe Holley EFI 16-Injector Wiring Harness is the ideal solution for builders requiring a custom fuel delivery setup. Designed for use with Bosch EV1 style injectors, this unterminated harness allows for maximum flexibility in your engine bay, making it perfect for complex forced-induction or high-output naturally aspirated projects where 16 injectors are required.\u003c\/p\u003e\u003ch3\u003eKey Features for Custom Builds\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for Bosch EV1 style fuel injectors\u003c\/li\u003e\n\u003cli\u003eSupports up to 16 injectors for high-horsepower applications\u003c\/li\u003e\n\u003cli\u003eUnterminated ends allow for custom length and routing\u003c\/li\u003e\n\u003cli\u003eHigh-quality, heat-resistant wiring\u003c\/li\u003e\n\u003cli\u003eCompatible with Holley HP and Dominator EFI systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis harness is engineered to meet the demanding requirements of professional engine builders. By providing an unterminated design, you can route the wiring exactly where it needs to go, ensuring a clean and professional appearance in your engine bay. The high-grade materials used in this harness ensure that your injectors receive consistent power and signal, which is critical for maintaining precise air\/fuel ratios under heavy load. When building a high-performance engine, don't compromise on your electrical system. Trust the quality and engineering of Holley EFI components available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI 16-Injector Wiring Harness \\u2014 Unterminated for Bosch EV1\",\"description\":\"Custom build your fuel system with the Holley EFI 16-injector unterminated harness for Bosch EV1. Professional-grade quality. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-207\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated\",\"offers\":{\"@type\":\"Offer\",\"price\":\"230.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated\",\"sku\":\"GVMR_558-207\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI 16-Injector Wiring Harness \\u2014 Unterminated for Bosch EV1\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI 16-Injector Wiring Harness \\u2014 Unterminated for Bosch EV1 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI 16-Injector Wiring Harness \\u2014 Unterminated for Bosch EV1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880373694548,"sku":"GVMR_558-207","price":207.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-207.jpg?v=1714511292"},{"product_id":"wire-harness-ls2-ls3-ls7-fuel-injectors","title":"Holley EFI Wire Harness - LS2\/LS3\/LS7 Fuel Injectors - EV6 Style - 58X Crank Sensor EFI — Kit","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePrecision Fuel Injector Control with Holley EFI LS2\/LS3\/LS7 Wiring Harness\u003c\/h2\u003e\u003cp\u003eEnsure flawless fuel injector operation in your LS2, LS3, or LS7 engine with the Holley EFI Wire Harness, specifically designed for EV6 style injectors and 58X crank sensor EFI systems. This high-quality wiring harness is crucial for accurate fuel delivery, directly impacting engine performance, efficiency, and reliability. Crafted with meticulous attention to detail, it provides a robust and secure connection, eliminating common electrical issues that can plague modified or high-performance builds.\u003c\/p\u003e\u003ch3\u003eEngineered for Optimal Performance:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eExact Fitment:\u003c\/b\u003e Precisely engineered for LS2, LS3, and LS7 engines utilizing EV6 style fuel injectors, ensuring perfect compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e58X Crank Sensor Compatibility:\u003c\/b\u003e Designed to integrate seamlessly with Holley 58X crank sensor EFI systems, guaranteeing accurate timing and fuel pulse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Construction:\u003c\/b\u003e Manufactured with high-grade automotive wiring and connectors for superior durability, heat resistance, and long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Signal Integrity:\u003c\/b\u003e Ensures clean, uninterrupted signals to your injectors, critical for precise fuel atomization and combustion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation:\u003c\/b\u003e A plug-and-play design simplifies the installation process, minimizing downtime and getting your vehicle running quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDon't compromise on your engine's electrical integrity. This Holley EFI wiring harness is an essential component for any serious LS build, providing the reliable foundation needed for peak performance and consistent operation. Trust GGCRACING for your high-performance wiring needs.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Wire Harness - LS2\/LS3\/LS7 Fuel Injectors - EV6 Style - 58X Crank Sensor EFI \\u2014 Kit\",\"description\":\"Connect your LS2\/LS3\/LS7 EV6 injectors with the Holley EFI Wiring Harness. Designed for 58X crank sensor EFI systems. Reliable and precise. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-501\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors\",\"offers\":{\"@type\":\"Offer\",\"price\":\"828.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors\",\"sku\":\"GVMR_558-501\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Wire Harness - LS2\/LS3\/LS7 Fuel Injectors - EV6 Style - 58X Crank Sensor EFI \\u2014 Kit\",\"item\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Wire Harness - LS2\/LS3\/LS7 Fuel Injectors - EV6 Style - 58X Crank Sen fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Wire Harness - LS2\/LS3\/LS7 Fuel Injectors - EV6 Style - 58X Crank Sen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880378085460,"sku":"GVMR_558-501","price":853.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-501.jpg?v=1714511716"},{"product_id":"injector-harness-ford-w-jetronic-injectors","title":"Holley EFI Fuel Injector Harness — Fits Ford V8 w\/ Jetronic EV1 Injectors","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley EFI\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/7lCRoQHNm6A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eReliable Fuel Injection Wiring for Ford V8\u003c\/h2\u003e\u003cp\u003eEnsure your fuel injection system operates at peak efficiency with the Holley EFI Fuel Injector Harness. Designed specifically for Ford V8 applications utilizing Jetronic (EV1) style injectors, this harness provides a secure and reliable connection to keep your engine running smoothly. High-quality wiring is essential for consistent fuel delivery and preventing electrical interference that can lead to performance issues.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompatibility: Ford V8 engines\u003c\/li\u003e\n\u003cli\u003eConnector Style: EV1 (Jetronic)\u003c\/li\u003e\n\u003cli\u003eHigh-grade insulation for heat and vibration resistance\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for a factory-fit installation\u003c\/li\u003e\n\u003cli\u003eEssential for custom EFI conversions and engine swaps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis harness is built to withstand the harsh environment of the engine bay, featuring durable materials that resist heat, oil, and moisture. By using a genuine Holley EFI component, you eliminate the guesswork and potential failures associated with generic or poorly constructed wiring kits. Whether you are restoring a classic Ford or building a high-performance track machine, this injector harness provides the electrical integrity required for precise fuel control. Proper wiring is the backbone of any successful EFI setup, and this harness ensures that your signals remain clean and uninterrupted. Trust your ignition and fuel system components to the experts and find all your necessary wiring solutions at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley EFI products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-pro-digital-dash-w-6-86in-screen\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash 6.86in Touchscreen — Universal Upgrade\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/pro-digital-dash-panel\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Pro Digital Dash Panel Assembly — Programmable Gauge Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/efi-dash-7-dash-bezel-62-65-nova\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Dash Bezel for 62-65 Chevy Nova — Black Plastic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/smart-coil-kit-8-cyl\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Smart Coil Kit 8-Cylinder — E-Core Coil-Near-Plug with Wiring Harness\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bbf-fe-efi-hyperspark-distributor\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley EFI Hyperspark Distributor - Ford FE-Series Big Block Sniper EFI Compatible\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley EFI Fuel Injector Harness \\u2014 Fits Ford V8 w\/ Jetronic EV1 Injectors\",\"description\":\"High-quality Holley EFI fuel injector harness for Ford V8 engines with EV1 Jetronic style injectors. Ensure reliable fuel delivery. Order at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley EFI\"},\"mpn\":\"558-213\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors\",\"offers\":{\"@type\":\"Offer\",\"price\":\"204.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors\",\"sku\":\"GVMR_558-213\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley EFI\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley+EFI\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley EFI Fuel Injector Harness \\u2014 Fits Ford V8 w\/ Jetronic EV1 Injectors\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley EFI Fuel Injector Harness \\u2014 Fits Ford V8 w\/ Jetronic EV1 Injectors fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley EFI Fuel Injector Harness \\u2014 Fits Ford V8 w\/ Jetronic EV1 Injectors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40880378576980,"sku":"GVMR_558-213","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-213.jpg?v=1714511726"},{"product_id":"injector-harness-v8-evenly-spaced-uscar","title":"Holley Fuel Injector Harness — V8 Evenly Spaced USCAR to EV6","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/mJ77Le4zOrg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003ePrecision Fuel Delivery for V8 Engines\u003c\/h2\u003e\u003cp\u003eThe Holley Fuel Injector Harness for V8 Evenly Spaced applications is designed to bridge the gap between your engine's fuel injectors and your EFI controller. Featuring USCAR\/EV6 connectors, this harness is essential for those upgrading to modern, high-flow injectors. It ensures a secure, high-conductivity connection that is vital for precise fuel pulse width control and overall engine efficiency.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for V8 engines with evenly spaced injectors\u003c\/li\u003e\n\u003cli\u003eUSCAR \/ EV6 connector compatibility\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant loom for engine bay protection\u003c\/li\u003e\n\u003cli\u003eEnsures optimal signal integrity for fuel injectors\u003c\/li\u003e\n\u003cli\u003eDirect-fit design for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a street machine or a dedicated race car, the quality of your injector harness directly impacts your engine's performance and tuning stability. This Holley harness is built to withstand the rigors of high-performance driving, featuring high-quality terminals that prevent vibration-induced signal loss. By using this harness, you ensure that your ECU can communicate effectively with every cylinder, resulting in smoother idle, better throttle response, and maximum power output. Upgrade your fuel system with confidence using top-tier components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley Fuel Injector Harness \\u2014 V8 Evenly Spaced USCAR to EV6\",\"description\":\"Upgrade your fuel system with the Holley V8 Evenly Spaced USCAR Injector Harness. Perfect fitment for high-performance builds. Order from GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-210\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-v8-evenly-spaced-uscar\",\"offers\":{\"@type\":\"Offer\",\"price\":\"199.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-v8-evenly-spaced-uscar\",\"sku\":\"BBVL_558-210\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley Fuel Injector Harness \\u2014 V8 Evenly Spaced USCAR to EV6\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-harness-v8-evenly-spaced-uscar\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley Fuel Injector Harness \\u2014 V8 Evenly Spaced USCAR to EV6 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley Fuel Injector Harness \\u2014 V8 Evenly Spaced USCAR to EV6?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":40893340483668,"sku":"BBVL_558-210","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-210.jpg?v=1714915785"},{"product_id":"ict-billetharness-adapter-jetronic-ev1-to-ev6-injector","title":"ICT Billet Harness Adapter - Jetronic EV1 to USCAR EV6 Injector - Set of 8","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout ICT Billet\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eICT Billet engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ICT Billet lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUpgrade Your Fuel Injectors with ICT Billet Harness Adapters\u003c\/h2\u003e\u003cp\u003eFacilitate your fuel injector upgrade with the \u003cb\u003eICT Billet Harness Adapter Jetronic EV1 to EV6 Injector\u003c\/b\u003e. This comprehensive set of eight adapters is designed to bridge the gap between older Jetronic EV1 style wiring harnesses and modern USCAR EV6 fuel injectors, providing a clean, reliable, and plug-and-play solution for your engine modification needs.\u003c\/p\u003e\u003ch3\u003ePrecision Engineered for Flawless Compatibility\u003c\/h3\u003e\u003cp\u003eGone are the days of complicated wiring modifications. These adapters allow you to install EV6 injectors without cutting or splicing your existing EV1 harness, preserving its integrity and simplifying the upgrade process. Each adapter is built with high-quality connectors and wiring, ensuring a robust electrical connection that supports optimal fuel injector performance and prevents potential issues like intermittent signals or misfires.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Adapts Jetronic EV1 harness to USCAR EV6 injectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eQuantity:\u003c\/b\u003e Set of 8 adapters\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInstallation:\u003c\/b\u003e Direct plug-and-play, no wire modification needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBenefit:\u003c\/b\u003e Ensures stable electrical connection for new injectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Ideal for performance builds, engine swaps, and injector upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUnlock Your Engine's Full Potential\u003c\/h3\u003e\u003cp\u003eAccurate fuel delivery is paramount for maximizing horsepower and efficiency. By using ICT Billet's specialized harness adapters, you ensure that your EV6 injectors receive the correct signals from your ECU, leading to precise fuel atomization and combustion. Trust in GGCRACING.COM to provide the high-quality components necessary for your vehicle's performance enhancements.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular ICT Billet products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetford-7-3l-godzilla-motor-mounts-universal\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Ford 7.3L Godzilla Motor Mounts — Universal Swap Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetan-radiator-hose-kit-electric-water-pump\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS-Series AN Radiator Hose Kit — Electric Water Pump\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-ls-lt-heater-core-hose-set\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal LS \/ LT Heater Core Hose Set — 5\/8in \u0026amp; 3\/4in\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-spark-plug-wir-e-set-remote-coil\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal Spark Plug Wire Set — LS \/ LT Remote Coil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetls-oil-dipstick-tube-plu-g-for-gen-3-4-5-ls1\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS Oil Dipstick Tube Plug - Gen 3, 4, 5 LS1 - Aluminum Natural\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"ICT Billet Harness Adapter - Jetronic EV1 to USCAR EV6 Injector - Set of 8\",\"description\":\"Seamlessly convert your EV1 harness to EV6 injectors with the ICT Billet adapter set. Includes 8 high-quality adapters for a perfect fit. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"ICT Billet\"},\"mpn\":\"WAINJ31\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-jetronic-ev1-to-ev6-injector\",\"offers\":{\"@type\":\"Offer\",\"price\":\"91.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-jetronic-ev1-to-ev6-injector\",\"sku\":\"HXXG_WAINJ31\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"ICT Billet\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=ICT+Billet\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"ICT Billet Harness Adapter - Jetronic EV1 to USCAR EV6 Injector - Set of 8\",\"item\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-jetronic-ev1-to-ev6-injector\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the ICT Billet Harness Adapter - Jetronic EV1 to USCAR EV6 Injector - Set of 8 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for ICT Billet?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the ICT Billet Harness Adapter - Jetronic EV1 to USCAR EV6 Injector - Set of 8?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"ICT Billet","offers":[{"title":"Default Title","offer_id":41120554287188,"sku":"HXXG_WAINJ31","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/ICTWAINJ31.jpg?v=1717323434"},{"product_id":"ict-billetharness-adapter-mini-del-phi-multec-2-to-ev6","title":"ICT Billet Fuel Injector Harness Adapter Mini Delphi Multec 2 to EV6 — Fits GM LS Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout ICT Billet\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eICT Billet engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ICT Billet lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/flynY3zbDRA\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eSeamless Fuel Injector Integration\u003c\/h2\u003e\u003cp\u003eUpgrade your fuel system without cutting or splicing factory wiring. The ICT Billet Fuel Injector Harness Adapter set allows you to convert your factory Mini Delphi Multec 2 harness to accept modern EV6 style fuel injectors. This plug-and-play solution is essential for LS engine swaps or when upgrading to higher-flow injectors during a performance build.\u003c\/p\u003e\u003ch3\u003eWhy Choose ICT Billet Harness Adapters?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Installation:\u003c\/strong\u003e No soldering or complex wiring modifications required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Quality Connectors:\u003c\/strong\u003e High-temperature housings ensure long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set:\u003c\/strong\u003e Includes 8 adapters, perfect for V8 engine configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fitment:\u003c\/strong\u003e Designed to lock securely onto your existing harness and injector ports.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese adapters are engineered to maintain a clean, factory-like appearance while providing the electrical connection integrity required for high-performance fuel delivery. By utilizing these adapters, you eliminate the risk of poor connections often associated with DIY wiring repairs. Whether you are running a stock ECU or an aftermarket standalone system, these adapters ensure your injectors receive a clean signal for optimal fuel atomization and engine performance. For all your LS swap wiring needs, rely on the quality components available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular ICT Billet products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetford-7-3l-godzilla-motor-mounts-universal\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Ford 7.3L Godzilla Motor Mounts — Universal Swap Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetan-radiator-hose-kit-electric-water-pump\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS-Series AN Radiator Hose Kit — Electric Water Pump\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-ls-lt-heater-core-hose-set\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal LS \/ LT Heater Core Hose Set — 5\/8in \u0026amp; 3\/4in\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-spark-plug-wir-e-set-remote-coil\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal Spark Plug Wire Set — LS \/ LT Remote Coil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetls-oil-dipstick-tube-plu-g-for-gen-3-4-5-ls1\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS Oil Dipstick Tube Plug - Gen 3, 4, 5 LS1 - Aluminum Natural\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"ICT Billet Fuel Injector Harness Adapter Mini Delphi Multec 2 to EV6 \\u2014 Fits GM LS Engines\",\"description\":\"Easily convert your fuel system with ICT Billet Mini Delphi Multec 2 to EV6 injector adapters. Perfect fit for GM LS engines. Buy your set at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"ICT Billet\"},\"mpn\":\"WAINJ32\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-mini-del-phi-multec-2-to-ev6\",\"offers\":{\"@type\":\"Offer\",\"price\":\"91.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-mini-del-phi-multec-2-to-ev6\",\"sku\":\"HXXG_WAINJ32\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"ICT Billet\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=ICT+Billet\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"ICT Billet Fuel Injector Harness Adapter Mini Delphi Multec 2 to EV6 \\u2014 Fits GM LS Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/ict-billetharness-adapter-mini-del-phi-multec-2-to-ev6\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the ICT Billet Fuel Injector Harness Adapter Mini Delphi Multec 2 to EV6 \\u2014 Fits GM L fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for ICT Billet?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the ICT Billet Fuel Injector Harness Adapter Mini Delphi Multec 2 to EV6 \\u2014 Fits GM L?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"ICT Billet","offers":[{"title":"Default Title","offer_id":41120554385492,"sku":"HXXG_WAINJ32","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/ICTWAINJ32.jpg?v=1717323458"},{"product_id":"ict-billetwire-harness-adapter-for-ev6-harness-jetronic-ev1","title":"ICT Billet Fuel Injector Harness Adapter USCAR EV6 to Jetronic EV1 — Fits LS Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout ICT Billet\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eICT Billet engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ICT Billet lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProfessional Fuel Injector Conversion\u003c\/h2\u003e\u003cp\u003eConnect your modern wiring harness to classic style injectors with the ICT Billet USCAR EV6 to Jetronic EV1 Harness Adapter set. This kit is specifically designed for enthusiasts performing engine swaps or injector upgrades who need to bridge the gap between different connector types. These adapters ensure a stable electrical connection, preventing misfires and fuel delivery issues.\u003c\/p\u003e\u003ch3\u003eKey Advantages\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffortless Conversion:\u003c\/strong\u003e Quickly adapt EV6 harnesses to fit EV1 style injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Connections:\u003c\/strong\u003e High-quality terminals provide consistent voltage to your injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-Saving:\u003c\/strong\u003e Eliminates the need to cut factory wiring, preserving your vehicle's harness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Heat-resistant materials designed to withstand harsh engine bay environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen upgrading your fuel system, maintaining electrical integrity is crucial for consistent performance. These adapters are built to meet or exceed OEM specifications, ensuring that your engine management system communicates perfectly with your fuel injectors. The set of 8 provides a complete solution for V8 platforms, making your build process faster and more reliable. Avoid the frustration of custom wiring and choose the professional route with these high-quality harness adapters. Discover more essential engine swap components and performance parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular ICT Billet products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetford-7-3l-godzilla-motor-mounts-universal\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Ford 7.3L Godzilla Motor Mounts — Universal Swap Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetan-radiator-hose-kit-electric-water-pump\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS-Series AN Radiator Hose Kit — Electric Water Pump\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-ls-lt-heater-core-hose-set\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal LS \/ LT Heater Core Hose Set — 5\/8in \u0026amp; 3\/4in\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetuniversal-spark-plug-wir-e-set-remote-coil\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet Universal Spark Plug Wire Set — LS \/ LT Remote Coil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/ict-billetls-oil-dipstick-tube-plu-g-for-gen-3-4-5-ls1\" style=\"color:#0066cc;text-decoration:none;\"\u003eICT Billet LS Oil Dipstick Tube Plug - Gen 3, 4, 5 LS1 - Aluminum Natural\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"ICT Billet Fuel Injector Harness Adapter USCAR EV6 to Jetronic EV1 \\u2014 Fits LS Engines\",\"description\":\"Convert your USCAR EV6 harness to Jetronic EV1 injectors with ICT Billet adapters. High-quality, plug-and-play solution for your LS build at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"ICT Billet\"},\"mpn\":\"WAINJ41\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetwire-harness-adapter-for-ev6-harness-jetronic-ev1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"91.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/ict-billetwire-harness-adapter-for-ev6-harness-jetronic-ev1\",\"sku\":\"HXXG_WAINJ41\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"ICT Billet\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=ICT+Billet\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"ICT Billet Fuel Injector Harness Adapter USCAR EV6 to Jetronic EV1 \\u2014 Fits LS Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/ict-billetwire-harness-adapter-for-ev6-harness-jetronic-ev1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the ICT Billet Fuel Injector Harness Adapter USCAR EV6 to Jetronic EV1 \\u2014 Fits LS Eng fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for ICT Billet?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the ICT Billet Fuel Injector Harness Adapter USCAR EV6 to Jetronic EV1 \\u2014 Fits LS Eng?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"ICT Billet","offers":[{"title":"Default Title","offer_id":41120554451028,"sku":"HXXG_WAINJ41","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/ICTWAINJ41.jpg?v=1717323474"},{"product_id":"fastinjector-adapter-harness-uscar-to-minitimer-8pk","title":"FAST Injector Adapter Harness USCAR to Minitimer (8pk) — Fuel Injection Upgrade","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout FAST\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eFAST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FAST lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSeamless Fuel System Integration\u003c\/h2\u003e\u003cp\u003eUpgrade your fuel injection system without the hassle of cutting or splicing factory wires. The FAST Injector Adapter Harness allows you to connect modern USCAR (EV6) fuel injectors to an older Minitimer (EV1) style factory wiring harness. This set of 8 adapters is the perfect solution for engine swaps or when upgrading to high-flow injectors that use a different connector type.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play Design:\u003c\/strong\u003e Installs in minutes, saving you time and preventing wiring errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Quality Connectors:\u003c\/strong\u003e Features high-quality seals and terminals for a weather-tight connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Ideal for converting EV1 harnesses to accept EV6 injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Set:\u003c\/strong\u003e Includes 8 adapters, enough for any standard V8 fuel injection setup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen performing a fuel system upgrade, maintaining electrical integrity is vital. Poor connections can lead to voltage drops, causing inconsistent fuel delivery and potential engine damage. These FAST adapters ensure a secure, low-resistance connection that keeps your engine running smoothly under all conditions. Whether you are tuning for more power or simply replacing aging injectors, this harness kit provides the reliability you need. Get your fuel system conversion done right with professional-grade components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular FAST products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fastdistributor-cap\" style=\"color:#0066cc;text-decoration:none;\"\u003eFAST 1000-1403 Distributor Cap — Fits HEI Style V8 Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fastadapter-large-dist-cap\" style=\"color:#0066cc;text-decoration:none;\"\u003eFAST Distributor Cap Adapter Small to Large Black Clip-On — Universal Fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fastdistributor-cap-small-diameter\" style=\"color:#0066cc;text-decoration:none;\"\u003eFAST Small Diameter Distributor Cap HEI Brass Terminals — Fits Chevy V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fastrace-billet-distributor-chevy-v8-small-cap\" style=\"color:#0066cc;text-decoration:none;\"\u003eFAST Race Billet Distributor Magnetic Trigger Small Cap — Fits Chevy V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/fastoptical-trigger-sensor-unit-w-weatherpak-term\" style=\"color:#0066cc;text-decoration:none;\"\u003eFAST Optical Trigger Sensor Unit Weatherpak Terminal — Fits Pro Race Dist.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"FAST Injector Adapter Harness USCAR to Minitimer (8pk) \\u2014 Fuel Injection Upgrade\",\"description\":\"Easily convert your fuel system with the FAST Injector Adapter Harness (USCAR to Minitimer). Set of 8 for seamless installation. Buy now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"FAST\"},\"mpn\":\"170604-8\",\"url\":\"https:\/\/ggcracing.com\/products\/fastinjector-adapter-harness-uscar-to-minitimer-8pk\",\"offers\":{\"@type\":\"Offer\",\"price\":\"112.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/fastinjector-adapter-harness-uscar-to-minitimer-8pk\",\"sku\":\"DXKP_170604-8\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"FAST\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=FAST\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"FAST Injector Adapter Harness USCAR to Minitimer (8pk) \\u2014 Fuel Injection Upgrade\",\"item\":\"https:\/\/ggcracing.com\/products\/fastinjector-adapter-harness-uscar-to-minitimer-8pk\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the FAST Injector Adapter Harness USCAR to Minitimer (8pk) \\u2014 Fuel Injection Upgrade fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for FAST?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the FAST Injector Adapter Harness USCAR to Minitimer (8pk) \\u2014 Fuel Injection Upgrade?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"FAST","offers":[{"title":"Default Title","offer_id":41122414985300,"sku":"DXKP_170604-8","price":140.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/FST170604-8.jpg?v=1717389483"},{"product_id":"injector-wiring-harness-v8-bosch-style-injectors-1","title":"Holley Injector Wiring Harness V8 Bosch Style Injectors — EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/cGriOvC9Mxg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley V8 Injector Wiring Harness for Bosch Style Injectors\u003c\/h2\u003e\n\u003cp\u003eAchieve precise and reliable fuel delivery for your V8 engine with the Holley Injector Wiring Harness, specifically designed for Bosch-style fuel injectors. This harness is an integral part of your Holley Dominator EFI system, ensuring each injector receives the correct signal for optimal performance and efficiency. Designed to handle the demands of high-performance applications, this harness provides a clean and secure connection, minimizing the risk of fuel delivery issues.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Compatibility:\u003c\/strong\u003e Specifically designed for V8 engines utilizing Bosch-style fuel injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolley Dominator EFI Ready:\u003c\/strong\u003e Engineered to integrate seamlessly with Holley's top-tier Dominator EFI system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Connections:\u003c\/strong\u003e Features high-quality connectors and wiring to ensure consistent injector pulse width and signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built to withstand the heat and vibration of the engine bay for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Installation:\u003c\/strong\u003e Streamlines the wiring process, reducing installation time and potential for errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Fueling:\u003c\/strong\u003e Ensures each injector fires accurately, contributing to improved engine performance, drivability, and fuel economy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProper injector wiring is critical for maximizing the potential of your engine and EFI system. This Holley harness provides the quality and reliability needed to ensure your injectors perform at their best, whether you're on the street or the track. Trust Holley for your EFI components and get the most out of your V8. Available now at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley Injector Wiring Harness V8 Bosch Style Injectors \\u2014 EFI\",\"description\":\"Ensure optimal fuel delivery with the Holley V8 Injector Wiring Harness for Bosch-style injectors. Perfect for Holley Dominator EFI. Shop GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-200\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"204.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors-1\",\"sku\":\"BBVL_558-200\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley Injector Wiring Harness V8 Bosch Style Injectors \\u2014 EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-bosch-style-injectors-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley Injector Wiring Harness V8 Bosch Style Injectors \\u2014 EFI fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley Injector Wiring Harness V8 Bosch Style Injectors \\u2014 EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601466302548,"sku":"BBVL_558-200","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-200_87f7fc95-d87e-42c5-b367-157b48f00d49.jpg?v=1727302368"},{"product_id":"injector-wiring-harness-v8-ev6-style-injectors-1","title":"Holley Injector Wiring Harness V8 EV6 Style Injectors — EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/mJ77Le4zOrg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley V8 Injector Wiring Harness for EV6 Style Injectors\u003c\/h2\u003e\n\u003cp\u003eEnsure precise fuel delivery for your V8 engine equipped with EV6 style fuel injectors using this dedicated Holley Injector Wiring Harness. Designed to integrate seamlessly with Holley Dominator EFI systems, this harness provides a robust and reliable connection for each injector. Proper wiring is essential for accurate injector pulse width control, leading to improved engine performance, drivability, and efficiency. This harness is built to withstand the rigors of the engine bay, ensuring consistent operation under demanding conditions.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Compatibility:\u003c\/strong\u003e Specifically designed for V8 engines utilizing EV6 style fuel injectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolley Dominator EFI Integration:\u003c\/strong\u003e Engineered for optimal compatibility and performance with Holley's Dominator EFI system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Signal Transfer:\u003c\/strong\u003e High-quality construction ensures consistent and accurate signal delivery to each injector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Engine Bay Ready:\u003c\/strong\u003e Built with materials resistant to heat, vibration, and chemicals found in the engine compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Installation:\u003c\/strong\u003e Reduces complexity and potential for errors during the EFI setup process.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Engine Performance:\u003c\/strong\u003e Contributes to optimal fuel atomization and combustion, leading to better power output and fuel economy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen upgrading to or building a Holley EFI system, using the correct wiring harness is paramount. This Holley Injector Wiring Harness for EV6 injectors provides the quality and reliability necessary for high-performance applications. Whether for a street machine, race car, or custom build, trust Holley components for your fuel system needs. Get yours today at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley Injector Wiring Harness V8 EV6 Style Injectors \\u2014 EFI\",\"description\":\"Upgrade your V8 with the Holley Injector Wiring Harness for EV6 injectors. Reliable EFI performance for Holley Dominator. Shop GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-201\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"182.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors-1\",\"sku\":\"BBVL_558-201\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley Injector Wiring Harness V8 EV6 Style Injectors \\u2014 EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-wiring-harness-v8-ev6-style-injectors-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley Injector Wiring Harness V8 EV6 Style Injectors \\u2014 EFI fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley Injector Wiring Harness V8 EV6 Style Injectors \\u2014 EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601466335316,"sku":"BBVL_558-201","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-201_e9f71d32-987e-4a34-97ad-53861280c595.jpg?v=1727302379"},{"product_id":"injector-harness-16-injectors-unterminated-1","title":"Holley 16 Injector Unterminated EFI Wiring Harness - Fits Holley HP\/Dominator EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ILTTO6NwVSY\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley 16 Injector Unterminated EFI Wiring Harness\u003c\/h2\u003e\n\u003cp\u003eOptimize your engine's fuel delivery with this high-quality Holley EFI Wiring Harness, designed to accommodate up to 16 injectors. This harness is specifically engineered for compatibility with Holley HP and Dominator EFI systems, providing a robust and reliable connection for your fuel injectors.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports up to 16 EV6 style fuel injectors.\u003c\/li\u003e\n  \u003cli\u003eUnterminated design allows for custom length and connector configuration.\u003c\/li\u003e\n  \u003cli\u003eDirectly integrates with Holley HP and Dominator EFI systems.\u003c\/li\u003e\n  \u003cli\u003eEnsures consistent and accurate fuel delivery for maximum performance.\u003c\/li\u003e\n  \u003cli\u003eDurable construction for long-lasting reliability in demanding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis unterminated harness offers the flexibility to tailor your wiring setup precisely to your engine bay's needs. Whether you're building a high-performance race car or a custom street machine, ensuring a clean and secure injector connection is crucial for optimal engine function. The Holley 558-207 harness provides the quality and reliability you expect from Holley, making it an essential component for any EFI conversion or upgrade. Experience enhanced engine response and efficiency with this premium wiring solution.\u003c\/p\u003e\n\n\u003cp\u003eGet the most out of your Holley EFI system. Shop this Holley Injector Harness at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley 16 Injector Unterminated EFI Wiring Harness - Fits Holley HP\/Dominator EFI\",\"description\":\"Upgrade your fuel system with the Holley 16 Injector Unterminated EFI Wiring Harness for Holley HP\/Dominator EFI. Shop now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-207\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"241.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated-1\",\"sku\":\"BBVL_558-207\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley 16 Injector Unterminated EFI Wiring Harness - Fits Holley HP\/Dominator EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-harness-16-injectors-unterminated-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley 16 Injector Unterminated EFI Wiring Harness - Fits Holley HP\/Dominator EF fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley 16 Injector Unterminated EFI Wiring Harness - Fits Holley HP\/Dominator EF?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601466597460,"sku":"BBVL_558-207","price":241.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-207_d5626489-b1cf-45d1-92e6-3aaba96cf2b1.jpg?v=1727302398"},{"product_id":"injector-harness-ford-w-jetronic-injectors-1","title":"Holley Ford EV1 Injector EFI Wiring Harness — Fits Ford V8","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ld2yUFY_dp0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley Ford EFI Wiring Harness for EV1 Style Injectors\u003c\/h2\u003e\n\u003cp\u003eThis Holley EFI Wiring Harness is specifically designed for Ford V8 engines utilizing EV1 style fuel injectors. It provides a direct and reliable connection to your Holley EFI system, ensuring consistent fuel delivery for optimal engine performance. This harness is an essential component for any Ford V8 owner looking to upgrade to or maintain an electronic fuel injection system.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for Ford V8 applications.\u003c\/li\u003e\n  \u003cli\u003eCompatible with EV1 style fuel injectors.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work seamlessly with Holley EFI systems.\u003c\/li\u003e\n  \u003cli\u003eEnsures precise fuel metering for improved engine efficiency and power.\u003c\/li\u003e\n  \u003cli\u003eRobust construction built for durability and long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAchieve smoother idle, better throttle response, and increased horsepower with a properly functioning EFI system. This Holley harness is built to the highest standards, ensuring that each injector receives the correct signal for optimal performance. It simplifies the wiring process, allowing for a cleaner and more efficient installation in your classic or performance Ford V8. Whether you're building a custom hot rod or upgrading your muscle car, this harness is a crucial part of a successful EFI conversion.\u003c\/p\u003e\n\n\u003cp\u003ePower your Ford V8 with confidence. Explore this Holley Injector Harness at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley Ford EV1 Injector EFI Wiring Harness \\u2014 Fits Ford V8\",\"description\":\"Get reliable fuel delivery with the Holley Ford EFI Wiring Harness for EV1 Style Injectors on Ford V8 engines. Shop performance parts at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-213\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"204.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors-1\",\"sku\":\"BBVL_558-213\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley Ford EV1 Injector EFI Wiring Harness \\u2014 Fits Ford V8\",\"item\":\"https:\/\/ggcracing.com\/products\/injector-harness-ford-w-jetronic-injectors-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley Ford EV1 Injector EFI Wiring Harness \\u2014 Fits Ford V8 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley Ford EV1 Injector EFI Wiring Harness \\u2014 Fits Ford V8?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601466662996,"sku":"BBVL_558-213","price":190.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-213_4f47caba-5570-454b-b2a8-1697ecb24074.jpg?v=1727302417"},{"product_id":"j3-connector-harness-1","title":"Holley J3 Connector \u0026 Harness — Fits Holley Dominator EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/pEqcCIG9Tr4\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley J3 Connector \u0026amp; Harness for Dominator EFI\u003c\/h2\u003e\n\u003cp\u003eExpand the capabilities of your Holley Dominator EFI system with the J3 Connector \u0026amp; Harness. This essential component allows for seamless integration of additional inputs and outputs, providing the flexibility needed for advanced engine tuning and monitoring. Designed with precision and durability in mind, this harness ensures a secure and reliable connection for critical sensors and control devices.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed for Holley Dominator EFI systems\u003c\/li\u003e\n\u003cli\u003eEnables connection of J3 auxiliary inputs and outputs\u003c\/li\u003e\n\u003cli\u003eHigh-quality materials ensure long-lasting performance\u003c\/li\u003e\n\u003cli\u003eSimplifies the wiring process for custom setups\u003c\/li\u003e\n\u003cli\u003eEach unit includes the connector and harness for a complete solution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Holley J3 Connector \u0026amp; Harness is a must-have for performance enthusiasts and professional tuners seeking to optimize their engine's performance. Whether you're integrating advanced data logging, custom warning lights, or additional control functions, this harness provides the reliability you need. Ensure your Dominator EFI is fully utilized with this critical wiring component. Find quality parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley J3 Connector \u0026 Harness \\u2014 Fits Holley Dominator EFI\",\"description\":\"Connect auxiliary inputs\/outputs with the Holley J3 Connector \u0026 Harness for Dominator EFI. Reliable performance for your build. Get yours at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-403\",\"url\":\"https:\/\/ggcracing.com\/products\/j3-connector-harness-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"179.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/j3-connector-harness-1\",\"sku\":\"BBVL_558-403\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley J3 Connector \u0026 Harness \\u2014 Fits Holley Dominator EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/j3-connector-harness-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley J3 Connector \u0026 Harness \\u2014 Fits Holley Dominator EFI fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley J3 Connector \u0026 Harness \\u2014 Fits Holley Dominator EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601468760148,"sku":"BBVL_558-403","price":168.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-403_116a580e-a883-457e-9e38-2e6b15c2cc0f.jpg?v=1727302560"},{"product_id":"j4-connector-harness-1","title":"Holley J4 Auxiliary Harness — Fits Holley Dominator EFI","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/PnXJWf45VOc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley J4 Auxiliary Harness for Dominator EFI\u003c\/h2\u003e\n\u003cp\u003eUnlock the full potential of your Holley Dominator EFI system with the J4 Auxiliary Harness. This high-quality harness is engineered to provide robust and reliable connections for auxiliary functions, essential for advanced engine management and tuning. Whether you're integrating sophisticated sensor arrays or custom control modules, the J4 harness ensures signal integrity and simplifies your wiring loom.\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned exclusively for Holley Dominator EFI systems\u003c\/li\u003e\n\u003cli\u003eFacilitates the connection of J4 auxiliary components\u003c\/li\u003e\n\u003cli\u003eConstructed with premium materials for maximum durability\u003c\/li\u003e\n\u003cli\u003eStreamlines complex wiring installations\u003c\/li\u003e\n\u003cli\u003eEach unit is a complete harness for immediate use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Holley J4 Auxiliary Harness is a critical component for any serious performance enthusiast or professional tuner. It allows for the seamless integration of additional sensors, switches, and control devices, providing the data and functionality needed for optimal engine performance and diagnostics. Ensure your Dominator EFI setup is complete and reliable. Discover top-tier automotive parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley J4 Auxiliary Harness \\u2014 Fits Holley Dominator EFI\",\"description\":\"Boost your Holley Dominator EFI with the J4 Auxiliary Harness. Reliable connections for advanced setups. Shop performance parts at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-404\",\"url\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"229.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness-1\",\"sku\":\"BBVL_558-404\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley J4 Auxiliary Harness \\u2014 Fits Holley Dominator EFI\",\"item\":\"https:\/\/ggcracing.com\/products\/j4-connector-harness-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley J4 Auxiliary Harness \\u2014 Fits Holley Dominator EFI fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley J4 Auxiliary Harness \\u2014 Fits Holley Dominator EFI?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601468792916,"sku":"BBVL_558-404","price":238.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-404_6b464e28-84c0-4b3a-bedf-dbf3d82a8261.jpg?v=1727302568"},{"product_id":"wire-harness-kit-efi-terminator-i-o-1","title":"Holley Terminator I\/O EFI Wiring Harness Kit - Fuel Injector Harness","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/pEqcCIG9Tr4\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley Terminator I\/O EFI Wiring Harness Kit\u003c\/h2\u003e\n\u003cp\u003eTake control of your engine's fuel and ignition with the Holley Terminator I\/O EFI Wiring Harness Kit. This comprehensive harness is engineered specifically for Holley's Terminator EFI systems, providing a robust and organized solution for managing essential input and output signals. Whether you're building a custom project or upgrading an existing setup, this kit ensures reliable communication between your ECU and critical engine components.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures and Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for Holley Terminator EFI systems.\u003c\/li\u003e\n  \u003cli\u003eManages crucial input and output signals for fuel and ignition control.\u003c\/li\u003e\n  \u003cli\u003eHigh-quality connectors and wiring for maximum durability and signal integrity.\u003c\/li\u003e\n  \u003cli\u003eSimplifies wiring installation and troubleshooting.\u003c\/li\u003e\n  \u003cli\u003eEnsures precise engine management for optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis I\/O harness kit is essential for any enthusiast looking to achieve peak performance and reliability from their Holley EFI setup. It streamlines the complex wiring process, allowing you to focus on tuning and enjoying your vehicle. Trust Holley for top-tier EFI components that deliver results. Find the perfect wiring solution for your performance build at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley Terminator I\/O EFI Wiring Harness Kit - Fuel Injector Harness\",\"description\":\"Simplify your EFI setup with the Holley Terminator I\/O Wiring Harness Kit. Designed for Terminator EFI systems, offering reliable input\/output connections. Shop GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-420\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-kit-efi-terminator-i-o-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"54.05\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-kit-efi-terminator-i-o-1\",\"sku\":\"BBVL_558-420\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley Terminator I\/O EFI Wiring Harness Kit - Fuel Injector Harness\",\"item\":\"https:\/\/ggcracing.com\/products\/wire-harness-kit-efi-terminator-i-o-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley Terminator I\/O EFI Wiring Harness Kit - Fuel Injector Harness fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley Terminator I\/O EFI Wiring Harness Kit - Fuel Injector Harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601469153364,"sku":"BBVL_558-420","price":56.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-420_9f9b34b9-ade0-476a-b985-82bb808c3a1e.jpg?v=1727302636"},{"product_id":"wire-harness-ls2-ls3-ls7-fuel-injectors-1","title":"Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness — EV6","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Holley\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHolley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/mJ77Le4zOrg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHolley LS2\/LS3\/LS7 Fuel Injector Wiring Harness for EV6 Injectors\u003c\/h2\u003e\n\u003cp\u003eOptimize your LS engine's fuel delivery with this high-performance wiring harness from Holley, specifically designed for LS2, LS3, and LS7 engines utilizing EV6 style fuel injectors. This harness ensures a robust and reliable connection to your EFI system, supporting Holley's 58X Crank Sensor EFI configurations.\u003c\/p\u003e\n\u003ch3\u003eEngineered for Performance:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInjector Compatibility:\u003c\/strong\u003e Perfectly suited for EV6 style fuel injectors commonly found on LS2, LS3, and LS7 engines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEFI System Support:\u003c\/strong\u003e Designed to work seamlessly with Holley 58X Crank Sensor EFI systems for accurate fuel management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built with high-quality materials to withstand engine bay heat and vibration, ensuring long-term reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimplified Installation:\u003c\/strong\u003e Features a design that facilitates easier installation, reducing complexity during your build or upgrade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Reliability:\u003c\/strong\u003e Provides a secure electrical connection, preventing fuel delivery issues and ensuring consistent engine performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis fuel injector harness is a critical component for any LS engine build or modification requiring precise fuel control. Whether you're upgrading injectors or completing a new engine assembly, this Holley harness guarantees proper function and performance. Trust GGCRACING for all your high-performance engine components.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Holley products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-500cfm-street-avenger\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 500CFM Street Avenger 2-Barrel Carburetor — Aluminum Finish\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/performance-carburetor-750cfm-4160-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4160 Series Performance Carburetor 750CFM — Square Bore Aluminum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/750-cfm-4150-hp-carb-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 750 CFM 4150 HP Double Pumper Carburetor 4-Barrel — Mechanical Secondary\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/competition-carburetor-1250cfm-4500-series\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley 4500 Series Dominator 1250 CFM 4-Barrel Competition Carburetor\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/650-cfm-classic-hp-carb-4150-double-pumper\" style=\"color:#0066cc;text-decoration:none;\"\u003eHolley Classic HP 4150 650 CFM 4-Barrel Carburetor — Mechanical Secondary Square Bore\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness \\u2014 EV6\",\"description\":\"Power your Holley 58X Crank Sensor EFI with the Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness for EV6 injectors. Shop performance parts at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Holley\"},\"mpn\":\"558-501\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"921.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors-1\",\"sku\":\"BBVL_558-501\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Holley\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Holley\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness \\u2014 EV6\",\"item\":\"https:\/\/ggcracing.com\/products\/wire-harness-ls2-ls3-ls7-fuel-injectors-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness \\u2014 EV6 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Holley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Holley LS2\/LS3\/LS7 Fuel Injector Wiring Harness \\u2014 EV6?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":41601470234708,"sku":"BBVL_558-501","price":949.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HLY558-501_64df017d-41a4-447f-bacf-459cd3c324c4.jpg?v=1727302828"}],"url":"https:\/\/ggcracing.com\/en-co\/collections\/fuel-injector-harnesses\/closeout.oembed","provider":"GGCRACING INC","version":"1.0","type":"link"}