Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - I have stock Gen IV 454 & 781 Heads, Compression ????
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Old 02-29-2012, 10:36 PM
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Getting those numbers is not going to be easy- or cheap- unless you do all your own work and are a real good head porter. The flow needed for 700 HP/TQ doesn't come from just hogging the seats out for big valves...
If you have someone who can get you 350 cfm out of them for $800 including valves, well, what can I say.
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