This is turning out to be a useful bit of chit chat.
The set up I have is NOLTEC Upper arm and CUCSO caster rods. Stock everything else. Tru-Track down here in Melbourne has set it up with 3.5 neg camber and 6 degrees of caster, and have had no issues with the components and it's nice on the 265/35/18 RE55's that I use. (Phillip Island is really tough on front right tyres).
It's the most caster I can fit without hitting the front of the guard liner, so can't imagine you could get any more without some modifications to the bumper etc.
Be interested in the camber/castor geometry any of you guys that run in club sprints use.
Cheers
Andrew