Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Port CFM vs. Valve Size vs. Port Velocity...Data WANTED!
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Old 04-13-2006, 03:12 PM
454C10 454C10 is offline
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In general you need 250cfm for 500hp natural aspirated. Or 235cfm for 470hp.

If you want big street-able power use a turbo or supercharger.

A mild 350hp 350 can make 525hp on 7 to 8 psi of boost.
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