Edelbrock Big Block Chevy Rectangular Port RPM Air-Gap Manifold 

Big Block Chevy Rectangular Port RPM Air-Gap

The Original. Our proven, race-wining Air-Gap design in a dual-planemanifold. Designed for Chevrolet V-8s, the award- winning RPM Air-Gapincorporates the same race-winning technology that's used on our competitionintakes. The air-gap design features an open air space that separates therunners from the hot engine oil resulting in a cooler, denser charge for morepower. Includes rear water outlets, two distributor clamp locations and nitrousbosses.

RPM Range: 1500 to 6500