{"product_id":"holley-efi-300-121bk-ls-efi-manifold-2x4-dual-plane-black-gm-ls1-ls2-ls6","title":"Holley EFI 300-121BK - LS EFI Manifold - 2x4 Dual Plane - Black GM LS1\/LS2\/LS6","description":"\u003cp\u003eHolley EFI 300-121BK - LS EFI Manifold - 2x4 Dual Plane - Black GM LS1\/LS2\/LS6\u003c\/p\u003e\u003cp\u003eHolley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1\/LS2\/LS6\u003c\/p\u003e\u003cp\u003eHolley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1\/LS2\/LS6 engines, w\/Black Ceramic Coating\u003c\/p\u003e\u003cp\u003eHolley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1\/LS2\/LS6 engines\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.\u003c\/li\u003e\n\u003cli\u003eAppropriate for any street\/performance, muscle car, or street rod enthusiast\u003c\/li\u003e\n\u003cli\u003eIntended for use on all GM LS Gen III engines equipped with LS1\/LS2 style cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003ePower band from 1500-7000 rpm\u003c\/li\u003e\n\u003cli\u003eCarbureted and EFI versions available\u003c\/li\u003e\n\u003cli\u003eCast aluminum construction\u003c\/li\u003e\n\u003cli\u003eThe Holley GM LS1\/LS2\/LS6 2x4V dual-plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am and at Lemans in the 1960’s.\u003c\/li\u003e\n\u003cli\u003eCarb Flange Center-To-Center: 8-5\/8”\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBasic Operating RPM Range\u003c\/strong\u003e: \u003cspan\u003e1500-6500\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eHolley EFI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Flange\u003c\/strong\u003e: \u003cspan\u003eSquare\/4150\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Quantity\u003c\/strong\u003e: \u003cspan\u003e2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCarburetor Studs Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eEngine\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCNC Ported\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: \u003cspan\u003eBlack\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: \u003cspan\u003eCast\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Port Shape\u003c\/strong\u003e: \u003cspan\u003eCathedral\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDeck Height\u003c\/strong\u003e: \u003cspan\u003e9.24\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEGR Port\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: \u003cspan\u003eGM LS1\/LS2\/LS6\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFlange Style\u003c\/strong\u003e: \u003cspan\u003e4150 Square Bore\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFront Maximum Height\u003c\/strong\u003e: \u003cspan\u003e4.47\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel Injectors Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel Rail(s) Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFuel System Type\u003c\/strong\u003e: \u003cspan\u003eEFI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGasket Or Seal Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Port Gasket(s) Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eManifold Type\u003c\/strong\u003e: \u003cspan\u003eDual Plane\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eAluminum\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eNitrous Bung(s) Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003epart type\u003c\/strong\u003e: \u003cspan\u003eEngine Intake Manifold\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePlenum Finish\u003c\/strong\u003e: \u003cspan\u003eBlack\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eIntake Manifold\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRear Maximum Height\u003c\/strong\u003e: \u003cspan\u003e5.54\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRemovable Runners\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eRemovable Top\/Lid\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSingle Or Dual Plane Type\u003c\/strong\u003e: \u003cspan\u003eDual Plane\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSub Category\u003c\/strong\u003e: \u003cspan\u003eCylinder Block Components\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Bore Diameter\u003c\/strong\u003e: \u003cspan\u003e1.75\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Gasket Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eVacuum Ports\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: \u003cspan\u003eManufacturer's Limited 90 Day Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":47328273825930,"sku":"HOLEFI-300-121BK","price":849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_300-121bk_normalized.jpg?v=1776464982","url":"https:\/\/www.onlyinstock.com\/products\/holley-efi-300-121bk-ls-efi-manifold-2x4-dual-plane-black-gm-ls1-ls2-ls6","provider":"Only In Stock","version":"1.0","type":"link"}