I have a 30 Coupe, wt. approx. 2200lbs., smallblock, roller cam, big heads, T350 worked trans, using a 3200-3500 stall Super Streetfighter, w a 3.89
(3.90) gear. Runs well, shifts good an firm, and will pull extemely hard off the line....28" tall tire, going to a 30"