Front suspension set up and wheel alignment

Scottrico said
I need some guidance on initial set up of front suspesion and wheel alignment on my 74 Duster. I am in the process of installing a completely new front suspension which includes a new Borgeson power steering box, pst 1.08 torsion bars, Dr Diff front disk brake kit, Dr Diff front suspension kit with stock type upper control arms, steering knucles, new upper and lower ball joints, idler arm, Pitman arm, tie rod ends, Hotchkis strut rods, etc. Only parts being reused are the center link and rebuilt lower control arms (pst kit).
I have read a lot of the posts concerning torsion bar installation and wheel alignment and am aware of many of the things to consider, but what concerns me is how will my front height adjustment be affected by the fact that I have installed the mancini racing leaf springs and the rear of the car sits up higher on the right rear side because of the different spring ratings. And how will wheel alignment be accomplished with this set up? This car will be driven on the street, and only go to the drag strip once or twice a year.

You don't compensate for the rear sitting unlevel with the alignment, or with the torsion bars. In other words, get it aligned to whichever specs you decide on (search the Skosh Chart) and just let it sit "wherever" it falls in the rear. If you try to compensate for the different spring rates in the rear by using the ride height in the front, you will make the rear suspension less effective on launch. Those particular springs are designed to make the car level on launch at the strip. That's why they sit driver's side down. The torque of the engine straightens the car on launch and plants the tires harder. When you get it aligned, just level up the FRONT with the torsion bars and allow it to sit unlevel in the rear. It's a Mopar thing.