The 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. Product Line: MidRise Air.
Mopar Chrysler SB 318 340 360 179cc 62cc Cast Iron Bare Cylinder Head
Mopar Chrysler SB 318 340 360 MID-AIR™ MidRise Aluminum Intake Manifold [Polishe
Mopar Chrysler SB 318 340 360 8000 Series Pro Billet Distributor [Red]