Holley Fuel Rail Kit - For HLY300-137 356603 3 AN Female

3 AN Female

1979-1990 GMC C2500

MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks

1955-1960 Chevrolet Truck CID 283

Pro-Lite 350 Line

Holley Fuel Rail Kit - For HLY300-137 356603 3 AN FemaleEFI Fuel Rail Kit for HLY300 137 Single Plane MidRise EFI LS Intake Manifold which fits all GM LS Gen III or IV engines equipped with LS1 LS2 LS6 style cathedral port cylinder heads. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley