Proflow Intake Manifold RPM AIRMax Aluminium Black Square Bore Chevrolet Big Block Oval Port Each

Proflow's AirMax intake manifold for popular V8 engines features improved technology and design that keeps the air/fuel mixture cooler all the way to the cylinder heads. The open air space from the AirMax design separates the runners from the heat of the lifter-valley cover. The runners are tuned to move the power band 1,000 rpm higher over the original AirDual manifolds to 1500-6500 rpm.