You need more tire. I have a 383 with about 400hp, TH350, 3.70 locker, multileaf rear springs and 235-60-15 MT Drag radials, and I have to roll into the throttle off the line or I spin and hop pretty bad. Look into the MT tires- they are supposed to be better than the BFGs.I can get a pair of these drag radials for $198.00 P215/60 R-14 will these be to small for my car- 64 nova stock susp. 400hp 350 700R4 3.73 posi need running 235/60R-14 street tires on street thanks for any help. Big Al?