Power steering question

I use plain old Dextron II
I wanted to use the Federal cuz of it's IMO superior design. But it just couldn't keep up, and nothing is worse than being in a skill-testing situation and then suddenly loosing boost. I took it apart,rebuilt it, and replaced the PR valve but it still couldn't keep up.
I swapped on a /6 Saginaw with proper V8 brackets and was home free.