Kumho 710 Pressures?

["Bob Mosso" <bobmosso@adelphia.net>]

A friend just put together an old non-AC, non-power steering Miata.  Full
CSP type suspension, something like 450# front springs, 300# rear springs,
bushings, race alignment, hollow sway bar, ......

He also just took delivery of 15x7 rims and a set of 205/50/15 Kumho 710s.

What pressures should he start with?  Autocross only.

Thanks in advance,
Bob Mosso