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Old 10-13-2006, 11:56 AM
Three Peaks Three Peaks is offline
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Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
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PM or email me your email address and I can send you an excel based calculator that you can figure out your gear/RPM/speed ratios. You'll have to find out what your tire diameters are and the different gear ratios for the tranny's you want to check but it works great.

bsfx(at)aol.com
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