04-13-2009, 09:31 AM
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CC Member
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Join Date: Jul 2005
Location: San Tan Valley,
AZ
Cobra Make, Engine:
Posts: 194
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Not Ranked
I've never worn out a street 331.
I've also never worn out a street 347.
The 347 will normally have more torque....but with that head you're probably looking somewhere around 330 to 350 H/P.
Personally, I'd take the 347 but everyone has their preference. I do sell 50 347 kits for every 331.
Whatever that means.......
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