strOker, you forgot a few important items realtive to the original post. First, torsion bar prices have doubles to over $300 a set. Secondly, while CE three way adjustable shocks are okay for a bracket car, they are marginal for the street with their rear 50/50, 70/30 and 80/20 adjustments (never mind fronts at 90/10), and absolutly unacceptable for a handling application where 50/50 is a must and the changes in compression and rebound dampening must be control via valving. To get a comparable shock to the XV units, you would need to get double adjustable, aluminum body, rebuildable, custom valved Afcos. These are going to run $250+ each, so the grand you saved on your set up is now gone if you piece the stuff together using a comparable shock absorber. Finally, the SS rear springs are not the best match for a handling combination as they have excessive arch and unless you running 1.22 torsion bars, have too much spring rate to be matched to the suspension frequency of the front.
Don't now what kind of race you guys have planned, but if it includes corners, cuda guy will take you in them with an XV set up. If it is only straights, then stoker is going to clean your clock, cuda guy. You can look at roads in one of two ways, it is all straights connected by those dang corners, or it is full or corners interupted by those freakin straights. How you set your car up depends on which view you take.
If you look closely at the picture posted higher up, you will notice that the XV set up has torsion bars and front sway bars that are the same, or close to the same, diameter. This means XV is using t-bars that are in the 1.12 range with a matching 1.125 front sway bar. Pretty stout combo there.