I would over-inflate your rears, maybe 45psi.
and under-inflate the fronts... maybe 20psi.

This is what I would try... but maybe one of the guys who goes to the track often would have something that has worked better.

"To strive to seek to find... and not to yield."
Michael J. Kulaga
Michael_97RS@2gntDSM.zzn.com
aol IM: MJKulga
http://highlander.dsmpower.com/

Firefly:
Mal: You don't know me, son, so let me put this to you plainly: If I ever kill you, you'll be awake. You'll be facing me. And you'll be armed.