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Old 11-07-2008, 12:03 PM
red65mustang red65mustang is offline
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point was size does make a big difference....

stock 29" tire, 70mph=2800 with 3.50 gears...
33" tire is only 2400rpms=70mph with 3.50
33" with 4.11, 70mph=2800 to get back to "stock" acceleration and have more timing....
33" with 4.56 would be more "pep" and quicker wind up in all gears....

here's a (bunch of) caculator(s) link you can mess with...
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