eagle- are you running the rev. 4 or rev. 3 chassis plate? If you are running the 3, i would really suggest picking up the 4 (unless you cut the chassis yourself) since on asphault where you have alot of body roll, it will make the most difference going to a narrower chassis (it wont rub).

Spyderx's set up is pretty much what everyone runs on asphault, and the car is dialed on the blacktop, Mo almost won the paved nats last year, except a corner marshall had a run in with his car.
Defently run the old style front end, and to make it easer to drive you can add castor.