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The Edelbrock Performer RPM Air-Gap intake for Oldsmobile 400–455 applications is intended for aggressive street and strip big-block Olds engines and is tuned to optimize horsepower from 1,500–6,500 rpm. Its Air-Gap design separates runners from hot engine oil for a cooler, denser charge. Compatible with stock heads and optimized for Edelbrock RPM cylinder heads #60519; not compatible with EGR or spread-bore carburetors.
Edelbrock Manifold RPM Air Gap Oldsmobile 455
