[Footbrake]

Just put on a set of 275/60 Hoosier drag radials, which are on a 9" rim. I've been having trouble finding a good starting point for the air pressure. Started with 18lbs. (which everyone says is right) and heating the tires in the pits and looking at the tire pattern they just left the pattern of the outside edges. I wonder if under a normal burnout they would heat up and flatten out and leave a full tread pattern. Been going up from there. Not having much sucess. 60's are very inconsistent.

My car is 3900 lbs. with me if that helps. I do a 1-2 gear burnout, when I see smoke I Let off the line-lock and power to the line. The 60's go anywhere from 1.74-1.77 which affect my e.t. a lot. Thanks for any help.