ok I will be rebuiling my M6 eventually and I am wondering if I should go with the stock gearing (for fbodys)or go with the ZO6 or Viper setup. I am turbo'd and have a 3.73 rearend. I am looking for a good solid launch but am setting my car up mostly for road race / autocross. thanks for your advice. ~Guy
You dont have to many option for 'gearing' a T-56 really.
You can run the standard F-body gears or run a little steeper GTO MN12 style sear.
Not to mention a gear change is costly.
I would stay w/ the F-body stock set specially if your forced inducted IMO.