Any 12 second combos with 3.23s?
Last fall I ran a 12.24 with 3.55 gears in my Cuda. Engine is a very mild 408. Trans is a 727 with a 3500 stall. Car is pretty heavy (3700 lbs race wt) so a lighter car would do it easier. I broke the 3.55's and put a set of 3:23's in it for now and would be shocked if it lost even 1/2 sec which would still put me solidly into the 12's. Traction is a big key to turning a good number