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Old 04-16-2009, 01:31 PM
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Chaplin Chaplin is offline
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Join Date: Mar 2002
Location: God's country, ME
Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
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I have 3.31s in the rear and the tko with the .82 fifth. In 5th doing 65mph I am turning somewhere around 2300. At 75mph in 5th I am turning about 2800. The other factor that you have to keep in mind is your cam shaft, you need to match your gearing to your cam shaft and vice versa. If you have a big cam that doesn't start to make power until 3500 or so, it will not be happy chugging along at 2000 rpm. It all has to work together.
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