Edelbrock BB Chevy O - Port RPM Air - Gap Manifold

Edelbrock part 7561 RPM Air - Gap 2 - O intake manifold is designed for street 396 - 502 c.i.d. Chevy V8's with large oval - port cylinder heads (1975 and earlier) or Edelbrock PerformerPerformer RPM heads. This RPM Air - Gap incorporates the same race - winning technology that's been used on our Victor Series competition intakes for decades. The Air - Gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Includes rear water outlets, two distributor clamp locations and nitrous bosses. Accepts all late model alternator and AC brackets for the street. For square bore carburetors only. Will not fit under stock hood of Corvette, 1964 - 67 Chevelle or 1967 - 81 Camaro. No provision for exhaust heated chokes and no exhaust crossover.