BennyBoy, just try to decide how fast you're willing to spin your engine while cruising. Right now with the 3.00/1, I bet you're turning about 2750 @ 70. If you go with a 3.73, you'll get 2750 X 3.73/3.00 = 3420 @ 70. 2750 X 3.55/3.00 = 3250 @ 70. 2750 X 3.25/3.00 = 2980 @ 70. Slight variations occur depending on tire diameter. You will have to be the one who decides what cruising rpm you can live with.
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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