{"title":"Carburetor Venturi Boosters","description":null,"products":[{"product_id":"drop-leg-booster-140in-orifice-4","title":"Advanced Engine Design Drop Leg Booster .140\" Orifice — Holley 4150 Set of 4","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\/vluxsaaikJw\" 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\u003eAdvanced Engine Design Drop Leg Boosters\u003c\/h2\u003e\u003cp\u003eUnlock the full potential of your Holley 4150 carburetor with a set of four Advanced Engine Design drop leg boosters. These boosters are specifically designed to enhance the fuel signal, providing better throttle response and more precise fuel metering throughout the RPM range. With a 0.140-inch orifice, these boosters are ideal for high-performance applications where consistent fuel delivery is non-negotiable.\u003c\/p\u003e\u003ch3\u003ePerformance Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop Leg Design:\u003c\/strong\u003e Known for superior signal strength and improved atomization, especially at lower air speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.140-inch Orifice:\u003c\/strong\u003e Optimized for specific flow requirements in high-output 4150-style carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Construction:\u003c\/strong\u003e Lightweight and durable, ensuring long-term performance under demanding racing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural Finish:\u003c\/strong\u003e Clean, high-quality finish that integrates perfectly with your existing carburetor components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of 4:\u003c\/strong\u003e Includes a complete set for a 4-barrel carburetor conversion or upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Upgrade Your Boosters?\u003c\/h3\u003e\u003cp\u003eThe booster is the heart of your carburetor's fuel delivery system. By upgrading to these drop leg boosters, you are improving the way fuel is introduced into the intake stream. This results in a more responsive throttle, better mid-range torque, and a more stable air-fuel ratio. These boosters are the perfect choice for racers and enthusiasts looking to fine-tune their Holley 4150 for the track or the street. Experience the difference that precision engineering makes in your engine's output. Find these and other high-performance carburetor components 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 Drop Leg Booster .140\\\" Orifice \\u2014 Holley 4150 Set of 4\",\"description\":\"Enhance your Holley 4150 carburetor with Advanced Engine Design drop leg boosters. 0.140\\\" orifice for improved fuel signal. Shop now at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"60721\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-140in-orifice-4\",\"offers\":{\"@type\":\"Offer\",\"price\":\"20.77\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-140in-orifice-4\",\"sku\":\"BJLH_60721\"}}\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 Drop Leg Booster .140\\\" Orifice \\u2014 Holley 4150 Set of 4\",\"item\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-140in-orifice-4\"}]}\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 Drop Leg Booster .140\\\" Orifice \\u2014 Holley 4150 Set of 4 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 Drop Leg Booster .140\\\" Orifice \\u2014 Holley 4150 Set of 4?\",\"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":40866611036244,"sku":"BJLH_60721","price":22.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED60721.jpg?v=1714266327"},{"product_id":"drop-leg-booster-160in-orifice-4","title":"Advanced Engine Design Drop Leg Booster - .160in Orifice (4) — Holley 4150 Carburetor Venturi Boosters","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\u003eSuperior Fuel Delivery with Advanced Engine Design Drop Leg Boosters\u003c\/h2\u003e\u003cp\u003eTransform your Holley 4150 carburetor's performance with the \u003cb\u003eAdvanced Engine Design Drop Leg Boosters\u003c\/b\u003e. This meticulously crafted set of four venturi boosters, featuring a .160 inch orifice, is engineered to optimize fuel signal strength and atomization. By enhancing the efficiency of fuel delivery, these boosters contribute to a more potent and responsive engine.\u003c\/p\u003e\u003ch3\u003ePrecision-Tuned for Holley 4150 Applications\u003c\/h3\u003e\u003cp\u003eEach booster is constructed from high-quality, lightweight aluminum with a natural finish, ensuring both durability and a clean aesthetic. The larger .160 inch orifice is ideal for specific tuning requirements, allowing for a tailored fuel curve that can unlock additional power and improve driveability. Designed as a direct fit for Holley 4150 carburetors, installation is straightforward, providing an immediate performance upgrade.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized Drop Leg Design:\u003c\/b\u003e Maximizes fuel draw and atomization efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e.160 inch Orifice:\u003c\/b\u003e Provides specific fuel flow characteristics for advanced tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Aluminum Construction:\u003c\/b\u003e Lightweight yet robust, with excellent corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNatural Finish:\u003c\/b\u003e Blends seamlessly with existing carburetor components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Fit for Holley 4150:\u003c\/b\u003e Ensures hassle-free installation and compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSet of 4 Boosters:\u003c\/b\u003e Complete solution for a 4-barrel carburetor.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrade to Advanced Engine Design Drop Leg Boosters with a .160 inch orifice and experience a significant improvement in your Holley 4150's fuel management, leading to a more powerful and efficient engine. Fine-tune your setup for peak performance with 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 Drop Leg Booster - .160in Orifice (4) \\u2014 Holley 4150 Carburetor Venturi Boosters\",\"description\":\"Boost your Holley 4150's performance with Advanced Engine Design Drop Leg Boosters. .160in orifice, aluminum, set of 4 for superior fuel delivery.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"60722\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-160in-orifice-4\",\"offers\":{\"@type\":\"Offer\",\"price\":\"20.77\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-160in-orifice-4\",\"sku\":\"BJLH_60722\"}}\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 Drop Leg Booster - .160in Orifice (4) \\u2014 Holley 4150 Carburetor Venturi Boosters\",\"item\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-160in-orifice-4\"}]}\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 Drop Leg Booster - .160in Orifice (4) \\u2014 Holley 4150 Carbu 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 Drop Leg Booster - .160in Orifice (4) \\u2014 Holley 4150 Carbu?\",\"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":40866611101780,"sku":"BJLH_60722","price":22.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED60722.jpg?v=1714266344"},{"product_id":"drop-leg-booster-180in-orifice-4","title":"Advanced Engine Design Drop Leg Carburetor Venturi Booster .180in Orifice Aluminum (4) — For Holley 4150 Carburetors","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 Maximum Flow: Advanced Engine Design Drop Leg Boosters for Holley 4150 (.180in Orifice)\u003c\/h2\u003e\u003cp\u003ePush the boundaries of your Holley 4150 carburetor's performance with the Advanced Engine Design Drop Leg Venturi Boosters. This set of four premium aluminum boosters, featuring an aggressive .180-inch orifice, is engineered for maximum fuel flow and signal strength, catering to high-horsepower applications and engines demanding the most from their fuel system. When every fraction of a horsepower counts, selecting the optimal booster size is paramount for achieving peak engine output.\u003c\/p\u003e\u003ch3\u003eAggressive Fuel Delivery for High-Performance Engines\u003c\/h3\u003e\u003cp\u003eThe advanced drop leg design of these boosters creates an exceptionally strong and consistent vacuum signal, ensuring that fuel is drawn and atomized with unparalleled efficiency. This superior atomization is crucial for complete combustion, translating directly into significant gains in horsepower and torque, particularly at higher RPMs. Constructed from lightweight, natural-finish aluminum, these boosters offer excellent durability and resistance to the harsh conditions within a high-performance engine. The .180-inch orifice is specifically chosen for applications where maximum fuel volume and signal are required, making it a favorite among drag racers and competition engine builders.\u003c\/p\u003e\u003ch3\u003eBenefits of AED .180in Drop Leg Boosters:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum Fuel Flow:\u003c\/b\u003e Largest orifice size for applications requiring peak fuel volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSuperior Signal Strength:\u003c\/b\u003e Ensures consistent and powerful fuel draw.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExceptional Atomization:\u003c\/b\u003e Finer fuel mist for optimal combustion and power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLightweight Aluminum:\u003c\/b\u003e Durable construction without adding unnecessary mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Performance Design:\u003c\/b\u003e Engineered for aggressive tuning and racing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete Upgrade:\u003c\/b\u003e Includes four boosters for a comprehensive carburetor enhancement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor those who demand uncompromising performance from their Holley 4150, the Advanced Engine Design Drop Leg Venturi Boosters with a .180-inch orifice are the ultimate choice. Achieve the precise, high-volume fuel delivery necessary to dominate the competition. Elevate your engine's potential with 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 Drop Leg Carburetor Venturi Booster .180in Orifice Aluminum (4) \\u2014 For Holley 4150 Carburetors\",\"description\":\"Maximize your Holley 4150's potential with Advanced Engine Design .180in Drop Leg Venturi Boosters. Experience peak fuel delivery and horsepower. Order now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"60723\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-180in-orifice-4\",\"offers\":{\"@type\":\"Offer\",\"price\":\"20.77\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-180in-orifice-4\",\"sku\":\"BJLH_60723\"}}\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 Drop Leg Carburetor Venturi Booster .180in Orifice Aluminum (4) \\u2014 For Holley 4150 Carburetors\",\"item\":\"https:\/\/ggcracing.com\/products\/drop-leg-booster-180in-orifice-4\"}]}\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 Drop Leg Carburetor Venturi Booster .180in Orifice 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 Drop Leg Carburetor Venturi Booster .180in Orifice Alumin?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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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 Atomization\u003c\/h2\u003e\u003cp\u003eOptimize your carburetor's performance with \u003cstrong\u003eAdvanced Engine Design (AED) Straight Leg Boosters\u003c\/strong\u003e. These .136-inch orifice boosters are designed specifically for Holley 4150 series carburetors, offering a critical tuning component for enthusiasts looking to refine their fuel delivery. Proper booster selection is essential for achieving the ideal air-fuel ratio and maximizing engine efficiency across the RPM range.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Straight leg style for consistent fuel signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice Size:\u003c\/strong\u003e .136 inch for precise fuel metering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Holley 4150 carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality aluminum construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e Set of 4 boosters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a race engine or tuning a street machine, AED boosters provide the adjustability needed to dial in your carburetor for peak performance. These boosters are manufactured to tight tolerances, ensuring reliable fuel atomization and improved throttle response. By replacing worn or mismatched boosters, you can eliminate flat spots in your power curve and ensure your engine performs at its best. Enhance your fuel system's capabilities 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 Straight Leg Booster .136in \\u2014 Fits Holley 4150 Carburetors\",\"description\":\"Fine-tune your Holley 4150 carburetor with AED Straight Leg Boosters. .136in orifice for improved fuel atomization. Get yours at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Advanced Engine Design\"},\"mpn\":\"6071\",\"url\":\"https:\/\/ggcracing.com\/products\/straight-let-booster-136in-4pk\",\"offers\":{\"@type\":\"Offer\",\"price\":\"20.77\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/straight-let-booster-136in-4pk\",\"sku\":\"BJLH_6071\"}}\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 Straight Leg Booster .136in \\u2014 Fits Holley 4150 Carburetors\",\"item\":\"https:\/\/ggcracing.com\/products\/straight-let-booster-136in-4pk\"}]}\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 Straight Leg Booster .136in \\u2014 Fits Holley 4150 Carburetor 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 Straight Leg Booster .136in \\u2014 Fits Holley 4150 Carburetor?\",\"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":41004284543060,"sku":"BJLH_6071","price":22.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/AED6071.jpg?v=1715707408"}],"url":"https:\/\/ggcracing.com\/collections\/carburetor-venturi-boosters\/closeout.oembed","provider":"GGCRACING INC","version":"1.0","type":"link"}