MrGTX, don't forget there's also a (slight) difference in springrates between A and B-body torsion bars because of their difference in length.

I've got 1" bars on my dailydriven '73 Dart, but I'm considering 1.14" bars now.
Hotchkis adjustable shocks up front and adjustable QA1 shocks on the rear with 7-blades per side.