I ran 29.5x11.5 MT slick for years, but was only at 3200 lbs going mid to low 11'0s. The car had super stock springs on it and later backhalved the car to ladder bars and went with the 29.5x13.5 MT slick. I ran 11 lbs in both slicks without an issue. Car currently has been a best of 10.49 with a 1.46 60ft. Have Hoosiers on there now (31x14 running 13 lbs), but will be switching back to MT on the next time I buy slicks.