Start with black kit springs and 40 or 50 wt shock oil all around. 0 degrees toe in front. 5mm/5.5mm f/r ride height ( you can go just a bit higher if the track is really rough). 1 degree camber front, 1.5 degree camber rear. Make sure you are either using the spring in the front diff, or use 100000 diff oil up front. This should give you a good base line setup for rubber tire on asphalt. If you are running foam, increase the camber a bit.
Make sure that you arn't preloading the shock springs too much with the preload spacers. The HPI shocks, when built by the manual will only take a very small preload spacer. Using a larger spacer will only mess up the spring rate. You might want to get some threaded shocks for better ride height control. HPI does sell a pretty good composite body threaded shock for the pro3 thats a lot cheaper then some of the aluminum ones on the market.