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  1. ratmaster

    Valve Seat Angle

    Anyone ever tryed 30 degree valve seats in a SBC? My project has a 350 CFM 2 BBL with a marine intake. I am very limited in flow including the heads (200 CC). Any power gains at or near 6500 RPM? Or would there be more at a lower RPM? My project is a NASCAR dirt hobby car.

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