If you choose to use a CPP kit, make sure that your kingpins aren't worn out. The power steering gets swimmy if they are worn. This is annoying because it adds to the lack of road-feel inherent to driving with the Saginaw p/s box.
I removed the original caster shims and replaced them with 6 degree caster shims. This greatly improved the feel of the road. Now when I come out of a turn, the wheels return toward the straight ahead position just like the stock manual steering box does.
