Intake Manifold Fit For Ford 302 351 Small Block V8 Cleveland Dual Plane AluminiumFeatures Part #7564 RPM Air Gap 351C Intake Manifold Design Utilizes The Same Race Winning Technology That's Been Used On Competition Intakes For Many Decades. Designed To Improve Performance On The Street Or Racetrack, This Manifold Features An Open Space That Separates The Runners From The Hot Engine Oil Resulting In A Cooler, Denser Charge. The RPM Air Gap Manifold For 351 Cleveland Engines Is Designed To Complement 351C Performer RPM Cylinder