Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Sbc 408 small chamber heads for more compression
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Old 06-20-2013, 09:13 AM
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you could gain power with a bigger cam,better intake and carb and way better headers.Those baffled hot rod headers could be costing you 50 hp?
those sportsman II heads can flow 275 cfm with porting,or you can buy heads that flow 320 CFM out of the box
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