I guess my experience and advise would be the opposite of what I read here. I have bracket raced my Dart for about 25 years now. After 2 904's tearing up within a 3 year time period, I decided to go with a 727. That has been over 20 years ago now, and no more transmission problems. I race eighth mile, and the 727 ran .003 slower. I gladly traded the .003 difference for the reliabality of the 727!