07-29-2010, 07:11 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
1970-1971 are among the best, but if you're not going for an 800hp drag engine, I wouldn't worry too much about cast numbers.
The factory heads are lacking and require porting/machine work to really make some power. Depending on your budget, there are some excellent aftermarket heads out there.
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