Steering Box Alignment

I think I mis-understood.
Yes, I agree, the 16:1 powersteering ratio is better than the 24:1 manual box. And the icing on my car, is a 13", thick-foam, steering wheel. Steering is a one handed deal, while I anchor myself in the RX-7 bucket, and hang on to the short shifter stick with the other. My box has had the reaction spring count massaged, so it has a lot of the over-boost eliminated.
So yes, your new PST 16:1 box will be miles ahead of the manual box.

The only caveat is figure eights. My re-built Federal pump (the round filler-tube model) could not keep up, even with an oil-cooler and a smaller drive pulley. So I ditched it for an old (oval-tube) Saginaw I had kicking around,and problem solved.