Engine Intake ManifoldEdelbrock part #7577 RPM Air Gap Magnum intake manifold is designed for 1992 & later 5. 2L (318 c. i. d.) and 1993 & later 5. 9L (360 c. i. d.) Chrysler Magnum V8 applications. The RPM Air Gap manifold allows the use of a carburetor for engine swaps in early muscle cars and street rods. This dual plane manifold design incorporates the same race winning Air Gap technology that's been used on our Victor Series competition intakes for decades for