It doesn't matter because I'm not running this car in any class-legal configuration; Brackets, only.
Insofar as what I'v done, it's minimal. at best:
Things already done:
90-10 shocks in front / 50/50 shocks in back
it never had a sway (anti-roll) bar
The K-H, 4-piston caliper, disk-brakes are going to be retained
The 340 torsion bars will remain, for the moment (318 4-drs with A-C had 340 bars)
Spring clamps on the forward portion of the leaf springs
Air Bag on right rear spring for pre-load
Auburn limited-slip
4-degree pinion wedge for proper rear u-joint angle
removed the OEM, spring clamps for leaf separation on acceleration
2 BIG batteries in trunk, on right side, in the rear portion
A-C compressor, condenser, and lines removed; evaporator remains, for the moment
Adjustable pinion snubber
For next season:
fiberglass front bumper and hood (pin-on)
Replace heavy-*** carpet with light, no sound-deadener, carpet.
lightweight front bumper brackete
replace heavy-*** bench seat with one (1) D-100 (cargo van) bucket
install driveshaft loop
install 4.10 center section (3.55 has been in there, until now
install 9" X 28" M-T bias-ply slicks on new, 7"-wide, 28"-tall, Ansen Sprints
Hopefully, all that will improve the 60-footers .3..... (from 1.81, prior)
Talk's cheap; we'll see...
