For the street, the 1.06's are fine with the Hotchkis/Fox shocks, and 18's. The ride is actually pretty good. I have some ESPO 6 leafs in the back, MP Offset shackles, and the hotchkis front and rear sway bars. 275-35-18 all the way around. For a street setup, it's pretty good. I think you'd want more rate for a track car.