I am not sure what suspension set up you have, but these earlier threads had some settings.
Wheel alignment
Harrison: Commodore adjustable radius rods
The amount of Camber you have at the rear seems good for track use, but that could be a different matter on the road. I seem to recall that most folk on here have a good deal more caster (6-8 positive) than you have (although I don't).
That steering set up may be more of an issue.