{"title":"Carburetor Metering Blocks and Components","description":null,"products":[{"product_id":"adjustable-secondary-jet-plate","title":"Advanced Engine Design Adjustable Secondary Jet Plate Kit — Holley 4160","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 Advanced Engine Design\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAdvanced Engine Design engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Advanced Engine Design 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\/ojTXvqKHMKM\" 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 Tuning for Holley 4160 Carburetors\u003c\/h2\u003e\u003cp\u003eAchieve the perfect air-fuel ratio with the Advanced Engine Design Adjustable Secondary Jet Plate. Designed specifically for Holley 4160 carburetors, this kit replaces the fixed secondary metering plate, allowing you to easily adjust your jetting without the need for a full carburetor teardown. This is an essential upgrade for racers and enthusiasts looking to dial in their secondary circuit for maximum track performance. The kit features a side-pivot design and includes all necessary gaskets and float components, ensuring a seamless installation and reliable operation.\u003c\/p\u003e\u003ch3\u003eBenefits of Adjustable Jetting\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Tuning:\u003c\/strong\u003e Easily change secondary jets to match track conditions or engine modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolley 4160 Compatibility:\u003c\/strong\u003e Engineered for a direct fit on popular 4160-style carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue Anodized Finish:\u003c\/strong\u003e Provides a clean, professional look while resisting corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes gaskets and float hardware for a hassle-free installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Efficiency:\u003c\/strong\u003e Precise fuel delivery leads to better throttle response and power.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eStop guessing with fixed metering plates and take control of your fuel system. Whether you are at the drag strip or tuning on the dyno, the ability to quickly adjust your secondary jetting is a game-changer. This high-quality component is built to withstand the demands of high-performance driving. Find all your essential carburetor tuning tools and components here 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 Advanced Engine Design 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\/350-500cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 2300 Carburetor Rebuild Kit — 350-500 CFM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/350-500cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design 350-500 CFM Holley 2300 Pro Series Carburetor Renew Kit — Gas\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Performance Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Pro Series Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit-alcohol\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Alcohol Renew Kit — 390-950 CFM Carburetor Rebuild\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\":\"Advanced Engine Design Adjustable Secondary Jet Plate Kit \\u2014 Holley 4160\",\"description\":\"Fine-tune your Holley 4160 carburetor with the Advanced Engine Design Adjustable Secondary Jet Plate. Easy tuning for optimal performance. Buy at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"6320\",\"url\":\"https:\/\/ggcracing.com\/products\/adjustable-secondary-jet-plate\",\"offers\":{\"@type\":\"Offer\",\"price\":\"57.26\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/adjustable-secondary-jet-plate\",\"sku\":\"BJLH_6320\"}}\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\":\"Advanced Engine Design\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Advanced+Engine+Design\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Advanced Engine Design Adjustable Secondary Jet Plate Kit \\u2014 Holley 4160\",\"item\":\"https:\/\/ggcracing.com\/products\/adjustable-secondary-jet-plate\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Advanced Engine Design Adjustable Secondary Jet Plate Kit \\u2014 Holley 4160 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 Advanced Engine Design?\",\"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 Advanced Engine Design Adjustable Secondary Jet Plate Kit \\u2014 Holley 4160?\",\"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":"Advanced Engine Design","offers":[{"title":"Default Title","offer_id":40866614804564,"sku":"BJLH_6320","price":61.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED6320.jpg?v=1714266660"},{"product_id":"650-850-cfm-secondary-metering-block","title":"Advanced Engine Design Holley 4150 Secondary Metering Block - 650-850 CFM Aluminum","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 Advanced Engine Design\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAdvanced Engine Design engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Advanced Engine Design lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRefine Secondary Fuel Delivery with the AED Holley 4150 Metering Block\u003c\/h3\u003e\u003cp\u003eAchieve unparalleled precision in your Holley 4150 carburetor's secondary fuel delivery with the Advanced Engine Design (AED) Secondary Metering Block. Engineered for carburetors ranging from 650-850 CFM, this aluminum metering block is a critical component for fine-tuning your engine's fuel curve under acceleration and wide-open throttle. Proper secondary metering is vital for maximizing horsepower and torque, ensuring your engine receives the correct amount of fuel when the secondary throttle plates open, preventing lean conditions and optimizing combustion efficiency.\u003c\/p\u003e\u003ch2\u003ePrecision-Machined Aluminum with Chromate Finish\u003c\/h2\u003e\u003cp\u003eThis AED secondary metering block is meticulously crafted from high-quality aluminum, known for its lightweight properties and excellent heat dissipation. The durable chromate finish not only provides superior corrosion resistance against fuel and environmental elements but also offers a clean, professional look that stands out in any engine bay. Each block is precision-machined to exacting tolerances, ensuring consistent fuel flow through all passages and the ability to accurately adjust jetting for optimal performance. Whether you're chasing every last horsepower on the dyno, seeking improved responsiveness on the track, or simply restoring your carburetor to peak condition, this metering block provides the foundation for superior fuel management and tunability across a broad range of engine setups.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Secondary Fueling:\u003c\/b\u003e Ensures precise and consistent fuel delivery during high-demand acceleration and wide-open throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide CFM Compatibility:\u003c\/b\u003e Designed for Holley 4150 carburetors in the versatile 650-850 CFM range, offering broad application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Aluminum Construction:\u003c\/b\u003e Lightweight, robust, and highly resistant to fuel, oil, and high temperatures for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrosion-Resistant Chromate Finish:\u003c\/b\u003e Provides superior protection against degradation while maintaining a clean, high-performance aesthetic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Machined Passages:\u003c\/b\u003e Guarantees consistent fuel flow and allows for accurate, repeatable jetting adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Performance \u0026amp; Tunability:\u003c\/b\u003e Contributes to improved horsepower, torque, and throttle response, giving tuners fine control over the fuel curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrevents Lean Conditions:\u003c\/b\u003e Ensures adequate fuel delivery to protect your engine from damage during aggressive driving.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor serious tuners and performance enthusiasts, the Advanced Engine Design secondary metering block is an indispensable tool for unlocking your Holley 4150's full potential and achieving a perfectly balanced fuel system. Trust GGCRACING for your advanced carburetor component needs, where precision engineering meets power.\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 Advanced Engine Design 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\/350-500cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 2300 Carburetor Rebuild Kit — 350-500 CFM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/350-500cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design 350-500 CFM Holley 2300 Pro Series Carburetor Renew Kit — Gas\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Performance Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Pro Series Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit-alcohol\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Alcohol Renew Kit — 390-950 CFM Carburetor Rebuild\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\":\"Advanced Engine Design Holley 4150 Secondary Metering Block - 650-850 CFM Aluminum\",\"description\":\"Optimize your Holley 4150's secondary fuel delivery with the Advanced Engine Design aluminum metering block. Chromate finish, 650-850 CFM. Achieve precise fuel tuning.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"6560\",\"url\":\"https:\/\/ggcracing.com\/products\/650-850-cfm-secondary-metering-block\",\"offers\":{\"@type\":\"Offer\",\"price\":\"73.26\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/650-850-cfm-secondary-metering-block\",\"sku\":\"BJLH_6560\"}}\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\":\"Advanced Engine Design\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Advanced+Engine+Design\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Advanced Engine Design Holley 4150 Secondary Metering Block - 650-850 CFM Aluminum\",\"item\":\"https:\/\/ggcracing.com\/products\/650-850-cfm-secondary-metering-block\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Advanced Engine Design Holley 4150 Secondary Metering Block - 650-850 CFM Alumin 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 Advanced Engine Design?\",\"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 Advanced Engine Design Holley 4150 Secondary Metering Block - 650-850 CFM Alumin?\",\"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":"Advanced Engine Design","offers":[{"title":"Default Title","offer_id":40866616868948,"sku":"BJLH_6560","price":73.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED6560.jpg?v=1714266760"},{"product_id":"pro-series-cnc-metering-block-dominator","title":"Advanced Engine Design Pro-Series CNC Metering Block (Dominator) — Fits Holley 4500 Series","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 Advanced Engine Design\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAdvanced Engine Design engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Advanced Engine Design lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eUnleash Precision Fueling with Advanced Engine Design Pro-Series CNC Metering Block\u003c\/h2\u003e\u003cp\u003eElevate the fuel delivery accuracy of your Holley 4500 Dominator carburetor with the Advanced Engine Design Pro-Series CNC Metering Block. This primary or secondary metering block is a critical component for fine-tuning your engine's air-fuel ratio, directly impacting horsepower, torque, and throttle response. Crafted from high-quality aluminum and finished with a distinctive blue anodization, this metering block isn't just about aesthetics; it's about delivering consistent, repeatable fuel curves under the most demanding conditions. For serious racers and performance builders, optimizing fuel delivery is paramount, and this AED metering block provides the precision required.\u003c\/p\u003e\u003ch3\u003eKey Advantages of the Pro-Series Metering Block\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCNC Machined Accuracy:\u003c\/b\u003e Each block is precisely CNC machined for consistent fuel and air passages, ensuring superior fuel curve repeatability and accuracy compared to cast blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Grade Aluminum:\u003c\/b\u003e Constructed from durable aluminum, offering excellent heat dissipation and resistance to fuel additives, ensuring long-term performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBlue Anodized Finish:\u003c\/b\u003e Provides enhanced corrosion resistance and a striking visual appeal, making it a standout component in your engine bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrimary or Secondary Application:\u003c\/b\u003e Versatile design allows for use in either the primary or secondary position on Holley 4500 series carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Fuel Delivery:\u003c\/b\u003e Engineered to provide consistent and precise fuel metering, crucial for maximizing power and efficiency across the RPM range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesigned for Holley 4500 Series Dominators\u003c\/h3\u003e\u003cp\u003eThis Pro-Series CNC Metering Block is specifically designed for \u003cb\u003eHolley 4500 Series Dominator carburetors\u003c\/b\u003e, making it an essential upgrade for drag racing, circle track, marine, and other extreme performance applications. Whether you're chasing every last horsepower or seeking unparalleled consistency, this metering block provides the foundation for advanced carburetor tuning.\u003c\/p\u003e\u003ch3\u003eThe Advanced Engine Design Difference\u003c\/h3\u003e\u003cp\u003eAdvanced Engine Design is a leader in high-performance carburetor components, and their Pro-Series CNC Metering Blocks are a testament to their engineering excellence. When precision and reliability are non-negotiable, trust AED to deliver. Upgrade your Dominator and experience the difference in fuel control and engine performance. Explore the full range of AED components at GGCRACING.COM.\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 Advanced Engine Design 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\/350-500cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 2300 Carburetor Rebuild Kit — 350-500 CFM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/350-500cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design 350-500 CFM Holley 2300 Pro Series Carburetor Renew Kit — Gas\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Performance Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Pro Series Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit-alcohol\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Alcohol Renew Kit — 390-950 CFM Carburetor Rebuild\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\":\"Advanced Engine Design Pro-Series CNC Metering Block (Dominator) \\u2014 Fits Holley 4500 Series\",\"description\":\"Upgrade your Holley 4500 Dominator with an Advanced Engine Design Pro-Series CNC metering block. Blue anodized aluminum for precise fuel delivery. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"6585A\",\"url\":\"https:\/\/ggcracing.com\/products\/pro-series-cnc-metering-block-dominator\",\"offers\":{\"@type\":\"Offer\",\"price\":\"118.90\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/pro-series-cnc-metering-block-dominator\",\"sku\":\"BJLH_6585A\"}}\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\":\"Advanced Engine Design\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Advanced+Engine+Design\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Advanced Engine Design Pro-Series CNC Metering Block (Dominator) \\u2014 Fits Holley 4500 Series\",\"item\":\"https:\/\/ggcracing.com\/products\/pro-series-cnc-metering-block-dominator\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Advanced Engine Design Pro-Series CNC Metering Block (Dominator) \\u2014 Fits Holley 4 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. 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See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Advanced Engine Design","offers":[{"title":"Default Title","offer_id":40866617032788,"sku":"BJLH_6585A","price":146.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED6585A.jpg?v=1714266785"},{"product_id":"650-850-cfm-primary-metering-block","title":"Advanced Engine Design 650-850 CFM Primary Metering Block — Fits Holley 4150","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 Advanced Engine Design\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eAdvanced Engine Design engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Advanced Engine Design lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePrecision Fuel Tuning with AED Metering Blocks\u003c\/h2\u003e\u003cp\u003eUnlock the full potential of your Holley 4150 carburetor with the Advanced Engine Design (AED) Primary Metering Block. Engineered for enthusiasts who demand consistent fuel delivery and precise tuning, this block is a direct upgrade for 650-850 CFM applications. Whether you are building a street machine or a dedicated drag car, this component ensures your engine receives the optimal fuel mixture across the entire RPM range.\u003c\/p\u003e\u003ch3\u003ePerformance Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: Fits Holley 4150 Series Carburetors\u003c\/li\u003e\n\u003cli\u003eFlow Range: Optimized for 650-850 CFM\u003c\/li\u003e\n\u003cli\u003eMaterial: High-quality aluminum construction\u003c\/li\u003e\n\u003cli\u003eFinish: Durable chromate coating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePurpose: Primary side metering\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe AED metering block is designed to provide superior fuel atomization and adjustability compared to stock components. By utilizing high-precision machining, these blocks allow for more accurate jetting and circuit tuning, which is essential for maximizing horsepower and throttle response. The chromate finish adds a layer of protection against fuel degradation and environmental elements, ensuring long-term reliability under the hood. Installation is straightforward for those familiar with Holley carburetor service, making it an excellent choice for DIY tuners looking to refine their fuel curve. Enhance your carburetor's efficiency and performance with quality 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 Advanced Engine Design 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\/350-500cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 2300 Carburetor Rebuild Kit — 350-500 CFM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/350-500cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design 350-500 CFM Holley 2300 Pro Series Carburetor Renew Kit — Gas\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Performance Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-pro-series-renew-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Pro Series Renew Kit — 390-1000 CFM Carburetor Rebuild\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/390-950cfm-holley-renew-kit-alcohol\" style=\"color:#0066cc;text-decoration:none;\"\u003eAdvanced Engine Design Holley 4150 Alcohol Renew Kit — 390-950 CFM Carburetor Rebuild\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\":\"Advanced Engine Design 650-850 CFM Primary Metering Block \\u2014 Fits Holley 4150\",\"description\":\"Improve your carburetor performance with the AED Primary Metering Block. 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