26 front, 24 rear. 235/15/60 Pirelli P600 fronts, 275/60 Nitto DR rear. I also autox with the same pressure/tires with quite satisfactory results. (Here's a recent video I posted in another thread:
http://www.youtube.com/watch?v=r3-x_6Tg6lQ).
For drag racing I lower to 20 psi in the DR's. Could probably go lower.