67 Valiant power steering way too touchy

Most power steering of the 60s and early 70s was over-assisted. You could drive most with just one finger on the wheel. The advice given in this thread is right on.
  1. Make sure all consumable components are in good shape. e.g. ball joints and bushings.
  2. Insure correct alignment (except caster) and ride height are at factory spec.
  3. Set the alignment for as much positive caster as you can get.
In the case of the 73, I was able to get +2 deg. of caster without using offset bushings or 'problem solver' parts. It firmed up the steering and improved initial turn-in, too.