Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Satin] That latter characteristic translates into

That latter characteristic translates into increased ground

It is set up to accept a spread bore carb

They're available in round and oval styles

at a better price than purchasing the parts separately

Step up to the high-rpm power of an open plenum with Speedmaster HiRise intake manifolds

Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Satin] That latter characteristic translates intoStep up to the high rpm power of an open plenum with Speedmaster HiRise intake manifolds. These cast aluminum manifolds accept square bore carburetors and are pressure tested to ensure maximum performance. They start to make awesome power around 3,000 rpm.