1st post, some susp. ?s

i got a 1973 scamp with drum brakes, power steering, and a slant six. this car wanders like crazy. i plan on rebuilding the front suspension with a poly kit, kyb shocks and torsion bars, but am unshure on which torsion bars to buy. i really enjoy a stiffer ride and would like the best cornering capability for my car without going all custom on the suspension.

the rear of the car is running mancini's xhd leaf springs, which i find terribly stiff, and when i put them on the car the pass side sat a good 2" higher than the drivers side. to remedy this i flipped the front spring hanger on the pass side, now the car sits about level. does anybody else have these springs or had the same outcome i have had? i also plan on putting the kyb shocks on the back.