Has anyone tried the Borgeson PS Box??

You replaced the box now....with what? Parts-store reman or a Mopar-vendor built unit?

If it's parts-store, it's probably crap.

That said, I bring it up because you need to diagnose the wander before you throw parts at it, and it could be something else entirely if you replaced the box with a quality piece. I used Firm Feel for mine and honestly can't imagine how the Borgeson box could be any better. Mopar PS was actually upper-tier back in the day, although a bit overboosted.

Now, will the Borgeson box let me run power steering on a big block A-body?