Designed for Chevy 396-502 street applications with large oval port cylinder heads (1975-Earlier), the RPM Air-Gap incorporates the same race-winning technology that's been used on the Victor Series competition intakes for years. Includes rear water outlets, two distributor clamp locations, and nitrous bosses. Accepts all late-model alternator and A/C brackets for the street. For square-bore carburetors only. No provision for exhaust-heated chokes and no exhaust crossover. Will not fit under stock hood of Corvette, 1965-67 Chevelle, or 1970-81 Camaro.