Beating a Dead Horse? (Steering Choices)

Well OK then.
I have rebuilt several of those p/s boxes. There is really nothing to them.And the rebuild kits are dirt-cheap.The single best thing you can do for them is to put a couple of extra reaction discs into them. This takes some of the vagueness out of them, and puts some feedback back into them, and gets rid of some of that over boost.
But I remember the 65 long roof I had. I put a 340/904 into it. Crazy !
But the thing I remember about mine was the soft,mushy, suspension. Between the 6banger springs and the so-soft shocks, it wallowed pretty good. So when I commanded the steering box to do one thing, the chassis kindof played catch-up. And when it finally did catch up,it had it's own thing in mind. But I was young (22ish), and with my lightning(lol)reflexes, I managed to keep that one at least, out of the ditches. That car was one of the funnest I ever owned.
But hey, if you wanna have some fun with that old girl, put a stock long-block360/904/2.94s in her. But unlike what I did,back in 75,you really oughtta accompany that with some suspension and brake upgrades.
Hooker made fenderwells for that application, but they definitely limited the steering.I wouldn't use them again,they were for drag-racing where turning is not a big deal, and front tires are often tall and skinny.
So getting back to the box; you know the rack is adjustable right?,to take up most of that slop.