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.
Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Polished]
Pontiac 326 350 389 400 428 455 MID-AIR™ MidRise Aluminum Intake Manifold [Polis
Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Satin]
Pontiac 326 350 389 400 428 455 MID-AIR™ MidRise Aluminum Intake Manifold [Satin
Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Black]
![Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Polished]](https://images.buynet.work/thumb.php?i=312171849&s=240)
![Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Satin]](https://images.buynet.work/thumb.php?i=312171981&s=240)
![Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Satin]](https://images.buynet.work/thumb.php?i=312172548&s=240)
![Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Black]](https://images.buynet.work/thumb.php?i=312172763&s=240)