Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Black] Speedmaster flexplates make excellent upgrades

Speedmaster flexplates make excellent upgrades to your stock design

These cast aluminum manifolds accept square-bore carburetors and are pressure tested to ensure maximum performance

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

a rough-running

and have TIG-welded seams

Chevy SBC 350 EFI 1957-95 Inj Ports HiRise Aluminum Intake Manifold [Black] Speedmaster flexplates make excellent upgradesStep 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.