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Old 04-06-2006, 08:24 AM   #13
Teds89IROC
 
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Join Date: Sep 2004
Location: Haledon, NJ
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Quote:
Originally Posted by Ian
does the 4/7 make that big of a difference?
I remember reading an article on this, I believe the only gains were above 6000 rpm and not worth if you had a mild to stock built motor. I think it was 10hp or something similar, I could be wrong though.

~Ted
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