I'm no expert, but I'll start. It certainly depends on your suspension components and tires, which you might want to post.
I've got 500/375 springs, a Suspension Techniques front bar set on soft, no rear bar, and run Hoosier R3S04.
Front - 3 deg camber, 0 toe on fast tracks, 1/16" toe out on twisty tracks.
Rear - 2.1 deg camber (can't get any more without changing the exhaust - but it seems OK), 1/8" toe in. I usually put 2 PSI extra in the rear tires to loosen it up a little.
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Marty Doane
ITS RX-7 #13
CenDiv WMR