bloody Hoosier's
start at 15-16psi and work ur way down. might be worth measuring them straight after the run, in the braking area runoff, see how much they pick up after the pass n burnout.
throw the Go-Pro on the tyre, apart from making a pretty sweet looking video, you might be able to pickup other stuff as it's going down track. here's one we did
http://www.youtube.com/watch?v=78VGsmQry7Q