Robert,
yes, that is correct.......I agree, if you can find a head to match your compression goals, thats great........many times, with pontiacs you will be to high or inevitably to low to acheive the compression you are shooting for.................for the small cost of milling it was worth it tp me...
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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile
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