:So be careful of that I believe TT-Pete broke his on his old setup and went back to regular TT gears. Also once you get a certain point you will get slower 1/4 mile and trap speeds because you have to do that extra shift. :SMZ had I NA rear end but it also used a cooler as well if I remember correctly.
for all other forms of real motorsports, you should be 'safe' (relative)