Base Manifold and Rail Kit for Lo-Ram 300-620 - 300-600 Not Promoted because the exhaust port centerline

because the exhaust port centerline on these heads is 5/8” higher and 3/8” out from the engine centerline compared to stock heads

is perfect for the person looking for moderately aggressive sound levels both inside and outside of the truck

Barrels 4 Billet Color Clear SP Dominator Brand Holley Carburetor Use Professional Race CFM 1050 Choke None Circuit 3 Condition New Emission Code 4 Finish Shiny Fuel Gasoline Fuel Inlet Dual High Speed Air Bleed 40 Idle Air Bleed Size 53 Intermediate Air Bleed 63 Marine Use No Material Aluminum Model 4500 Primary Main Jet 84 Primary Power Valve 5

Fully adjustable stainless steel external linkage can be adjusted for 1:1 progressive

Base Manifold and Rail Kit for Lo-Ram 300-620 - 300-600 Not Promoted because the exhaust port centerlineOverview: The 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 (Original Equipment) or aftermarket cylinder heads. The 300 600 is the lower manifold in the 300 620 complete kit. Offering this separately allows you to select your components individually as you build your system. The Lo Ram intake