Chevy SBC 350 1957-95 (Non EGR) LowRise+ Aluminum Intake Manifold [Polished] The Speedmaster LowRise Manifolds are

The Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles

351c Cleveland

accurate movements when shifting

It is similar to our LowRise

Fits big block Chevy rectangular port cylinder heads on standard deck blocks

Chevy SBC 350 1957-95 (Non EGR) LowRise+ Aluminum Intake Manifold [Polished] The Speedmaster LowRise Manifolds areThis is our top of the line medium profile LowRise+ Series manifold. It is similar to our LowRise, although slightly taller, but with several important modifications. First, it has a square bore carb flange instead of a spread bore. It also features nitrous bosses and rear water ports. This manifold will typically produce more power than any similar competitive manifold due to larger ports and runners.