I have been testing with the SuperTruck( not Daryl, lol!)a lot lately and here is what I have found to be a fast consistent setup.

Start with the 13.5 spec setup Dom posted with the following changes.
+2.5 camber lf
Silva HPS2 center shock with 30 weight oil, white progressive Mcpappy spring
.020 springs in the front. .010 droop rf, .040 lf.
.035 toe out
325g on lr 300-315 on lf
start with rear tires same size, .010 reverse stagger in front.
1.8 amp draw with rollout 5.31 for a CRC size track. That is with an Impact.