[Frank Coppola]

I am no expert on ratios but I will tell you this: I have a 3:50 rear with a C-6 3 speed. At 70 mph I'm running about 3,500 rpm +/- 300. If I had a lower ratio I would probably kill myself as there is no end to the pedal. The fun of driving personally speaking is coming off the line. Doing 160mph in a Cobra with a fiberglass body, no airbags, and manual brakes is an unneccesary risk.

My answer to you is to tailor your ratio to what kind of driving you're going to do. I'm sure there is a way to calucate your RPM's vs. MPH with the tranny and wheels you have, but I can't help you there.