Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620 holley 4L V8 1973 - 1974

4L V8 1973 - 1974 GMC C25/C2500 Pickup 454/7

improving throttle response and broadening the torque curve

1998-2001 Mazda B2500

1967-1970 Mercury Cougar

Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620 holley 4L V8 1973 - 1974Overview: 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 manifolds will work with OE or aftermarket cylinder heads. 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