SpecRacer.com

Have you seen the Hoosier setup recommendations? https://www.hoosiertire.com/contingency_rates/scca_srf/ It's a decent base-line.

I don't think it's a secret that most cars are running camber at the high end (or higher) than the Hoosier recommendations.

I'll spill the "secret": the GCR maximum legal camber is -5 degrees. I believe that everyone is flirting with that limit. Personally, I run -4.5 degrees. Getting that much camber can cause some problems with rod end thread exposure. The GCR limits exposed threads on rod ends to 0.570". When I increased my camber to -4.5, I spent a lot of time adjusting seemingly every other rod end on the entire suspension! Of course, that led to the always fun job of adjusting bump steer.

For everything else, the Hoosier recommendations are a good starting point.