I have a '59 Apache 3200 that I installed a th350 in. I thought I saw a link to a RPM calculator based on tire size and gear ratio; however, after searching, I have been unable to find that link again, leading me to think I spent too much time in the garage smelling gasoline. If anybody can help, it would be greatly appreciated. Thanks.

Jessica's Truck

The true definition of insanity:
To do the same thing the same way repeatedly and expect a different result each time.