I run M/T 29.5/11.5 on mine. Air pressure at 11.75-12.0 lbs. I do a pretty good burn out, but probably more for the driver and the show. Car leaves wheels up every pass and carries the fronts almost to the 60' on a good run. Car is 3200 lbs, modified SS leaf springs only (no cal tracs, adj shocks, no pinion snubber ect.) Stock front 6 cyl torsion bars. Foot brake, Turbo Action "J" converter.

Brian Dunnigan