Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Welcome to the new era

Welcome to the new era in fuel injection

Dual distributor hold downs and Four corner water ports

They are quality-manufactured from stainless steel and are available in 18 to 80 oz

and return line fittings

Speedmaster Keychains are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories

Chevy SBC 350 1957-95 MID-AIR™ MidRise Aluminum Intake Manifold [Polished] Welcome to the new eraThe 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.