Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] Speedmaster pinion depth shims allow

Speedmaster pinion depth shims allow you to seat your pinion gear perfectly

The quality of these throttle bodies are better than others available today

Speedmaster braided hoses feature a heavy-duty

The LS (Gen3/4) platform has many design benefits over the earlier SBC engine designs

looks beautiful when you pop the bonnet

Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Satin] Speedmaster pinion depth shims allowThe 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.