{"product_id":"gvmr-300-604bk","title":"Holley EFI 300-604BK Holley EFI Lo-Ram Plenum","description":"Holley EFI Lo-Ram Plenum; Cast Black; For Use w\/PN[300-621BK]\/GM LS1\/LS2\/LS3;\u003chr\u003eThe Holley LS1\/2\/6 Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1\/2\/6 (cathedral port) cylinder heads. These intake manifold and rail kits will work with OE or aftermarket cylinder heads. The 300-604 is the plenum top in the 300-621 complete kit. Offering this separately allows you to select your components individually as you build your system. The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112-581 or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood in the front-feed configuration. The 300-621 Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.\u003cul\u003e\n\u003cli\u003eFor Forced Induction Engines With Peak Power At 7000-8000 Rpm\u003c\/li\u003e\n\u003cli\u003eModular Design Allowing The Use Of Front-Feed Plenum Entry\u003c\/li\u003e\n\u003cli\u003eCustom Inlet Duct And Throttle Body Placement\u003c\/li\u003e\n\u003cli\u003eFit Under A Stock Or Mildly Modified Hood In The Front-Feed\u003c\/li\u003e\n\u003cli\u003eClears 4Th Gen Camaro\/C5 Corvette Cowls\/Hoods w\/o Modification\u003c\/li\u003e\n\u003cli\u003eHigh Volume Fuel Rails And Mounting Hardware Included\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eApplication Summary:\u003c\/h3\u003e\n      \u003ctable class=\"table-appsum\"\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eYear\u003c\/th\u003e\n            \u003cth\u003eMake\/Model\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eDesigned\u003c\/td\u003e\n            \u003ctd\u003efor GM LS Gen III and IV engines equipped with GM LS1\/2\/6 (cathedral port) cylinder heads\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    ","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":40289575108747,"sku":"HOL300-604BK","price":321.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/5495\/7707\/files\/hol300-604bk-9f8a23daafb6e65b949d0e33a1a42883726f9723.jpg?v=1766200532","url":"https:\/\/jbspowercentre.com\/products\/gvmr-300-604bk","provider":"JBs Power Centre","version":"1.0","type":"link"}