Thread: my first disgusted spectator
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Old 05-22-2010, 03:09 PM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by dcdoug View Post
My tach shows I'm turning closer to 2000 RPM @ 70mph. Maybe a touch over that, but not 2,500.
There's several Speed/RPM Calculators on the 'net. You can double check me, but I'm pretty sure a 3.31 rear and the .82 5th gear gives you 2500 RPM at 70 MPH. But I could always be wrong....
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