Thread: Kirkham For Sale
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Old 07-20-2006, 11:15 PM
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Join Date: Sep 2001
Location: Tulsa, OK
Cobra Make, Engine: SPF 148 with 427 SO
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I have the tremec 3350. here is a nifty little calcuator

http://www.secondstrike.com/Technical/GearCalc.asp

this helped me out a bunch. I have a 427 with just under 600HP and quite a bit of torque. the loss in performance has been minimal with the gear change and the change in "useful" ranges of the gears is great. I can actually use all the gears!