With as "hot" as that car might be I would darn sure check the chassis alignment as a whole, AKA rear axle alignment. There are ways to do that at home. Personally I would accept closer to 0 camber for more caster. (Assume you run radials) I've been told even -1/2 degree is enough camber
If you try and set up to check axle alignment bear in mind that front and rear track is likely different widths, as well as wheel offset
