sorry, I guess I should have given an order for adjustments. first thing to adjust is toe, just get it close as it will change a bit and you will need it set for accurate camber measurement, then set camber, just put a bit of preload on the springs to seat the outer setscrews (which are not used for rideheight), next set ride height with the kingpin shims. after that set the upstops. as a final go back to the toe and reset it. the only 2 settings that you should be adjusting after that are the kingpin shims for ride height, and toe as it typically changes slightly with ride height. something that I left off of my setup was that I use the centerpoint steering supplied with the kit and put the ballstuds in the outermost hole on the bottom of the knuckles.
I can't say for sure what the upstops do, but I figure that during cornering they will prevent the chassis from bottoming and losing side bite. Are you running asphalt or carpet?

Scott