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

These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use

Design from the ground up based upon your favourite bowtie block with the ability to handle naturally aspirated

They start to make awesome power around 3

1966-72 (1973 non-CA) passenger cars

Chevy SBC 350 1957-95 (Non EGR) LowRise+ Aluminum Intake Manifold [Polished] These Speedmaster supercharger 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.