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Old 04-13-2006, 01:15 AM
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xntrik xntrik is offline
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Rule of thumb says = normally aspirated you can get 2 h.p. per each cfm of intake flow on the flowbench, if the exhaust flow is 70% or better.

Using that...... you can't reasonably get 500 hp with those heads.....

of course, horsepower IS based on RPM.

Last edited by xntrik; 04-13-2006 at 01:27 AM.
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