Originally put 87 cc round port out of the box edelbrocks on my 467 and ran them hard for 15 years. No problems at all. Last time around had Butler do some porting with other engine mods (45 iron block) and have been real happy still.
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 1967 GTO, 467 roller motor, e heads ported, tremec T56 magnum 6 speed and
9" done. EZ EFI 2.0 with FAST dual sync distributor and separate nitrous system done. Track is at 4300 ft elevation. so far a best of 11.95@116. Suspension now getting dialed in...tubular front a arms with dual adjustable coil overs HR Parts n stuff rear bar and whole car lowered 3 inches..
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