Hollow65, I don't know what percentage of the engine's max RPM's I'm running. That's way over my head!! But, I do know that I tend to agree that changing the gears in the pumpkin would be much easier than changing out the tranny, and cheaper too. I'm running a Chevy 350 engine with a Turbo350 tranny now. The PO put a F**d 9" rear in it and could not tell me what gears were in it, except to say they were "tall". He was right!! What ring and pinion set would everyone recommend putting in it to help me get where I'd like to go with this project..... much lower RPM's and better mileage??
Thanks!!!