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Registered Member
Join Date: Nov 1998
Location: Houston, Tx.
Posts: 3,887
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![]() I run a 3.25 with my C-4 and 235/60/15's. That makes me cruise at 3000 rpm @ 70 mph. That's about as high rpm as I want to cruise.
If you later switch to an over-drive, you can easily use a much lower (numerically higher) rear axle. Then a 3.89 would be ideal IMHO. Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe |
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