Speedmaster 1-147-035 Fits Chevy SBC 350 HiRise Vortec Intake Manifold Machine 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.

• Step up to the high-rpm power of an open plenum
• Design for racing applications or for serious street performance
• Cast from steel molds for a tighter grain and reduction of porosity
• Pressure tested to ensure maximum performance