Ford 429 460 MID-AIR™ MidRise Aluminum Intake Manifold [Black] These Speedmaster gasket kit sets

These Speedmaster gasket kit sets include premium-quality head gaskets

The Speedmaster Snapback cap is a pre-curved bill Baseball style hat

while increasing thermal conductivity

This is our top-of-the-line medium profile LowRise+ Series manifold

They feature lightweight construction with a thick rail for gasket support

Ford 429 460 MID-AIR™ MidRise Aluminum Intake Manifold [Black] These Speedmaster gasket kit setsThe Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise. The main difference is that there is an open area under the plenum chamber. This feature is sometimes called an air gap design. The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine. This cooler air charge provides additional power and torque.