Edelbrock 75213 RPM Air-Gap Black Intake Manifold for Small Block Ford 302RPM Air Gap Small Block Ford 302 Black Intake Manifold Edelbrock part #75213 RPM Air Gap intake manifold is designed for street 289 302 347 c. i. d. Ford V8's. The 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