Speedmaster 1-147-035 Compatible with Chevy SBC 350 Vortec HiRise Aluminum Intake Manifold [Polished]

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. They start to make awesome power around 3,000 rpm.