upgrade power steering pump or steering?

[woody80z28]

4th-gens are steering rack, not box, right? I wonder if the 4th-gen pump is valved right for the box.

I'm using an 85 IROC box which was a huge upgrade over stock Camaro - much more feel. I'm not sure where WS6 is on that scale. I also used an IROC valve in the stock style pump, never tried it with stock valving.

I have a TypeII pump as part of this round of upgrades, but I got it from a 2000 S10 (steering box) application. That's the best valving match available I could find.