i got the car up to about 50 at the end of 2nd, and there were no problems. I never got it any higher than that cuz I have`nt had the chance. as far as I know the tranny is fine. no grinds no nothin. I need a new fuel pump, which I will be getting here in the next few days, before my car will run again. after its running, I could let you take it out for a spin to see for yourself.