Oldsmobile 400 425 455 MID-AIR™ MidRise Aluminum Intake Manifold [Black] These EGR adapter fittings are

These EGR adapter fittings are designed for use with Speedmaster manifolds and will also work on similar Edelbrock EGR small block Chevy manifolds

Each kit comes with high-torque motor

Speedmaster 7000 Series Cast Body Ready-to-Run distributors are the perfect upgrade for your outdated and worn-out stock distributor

The ends are factory-crimped to eliminate leakage

Its unique construction features an aluminum core with an outer silicone coating

Oldsmobile 400 425 455 MID-AIR™ MidRise Aluminum Intake Manifold [Black] These EGR adapter fittings areThe Speedmaster MID AIR design features the identical plenum and runner design as the normal mid rise. 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.