Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Black] Speedmaster flexplates will withstand the

Speedmaster flexplates will withstand the extreme power and rpm of today's engines

and have TIG-welded seams

Step 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

a rough-running

Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Black] Speedmaster flexplates will withstand theStep 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.