On my '70 Impala, I use these, which give better caster:
1965-70 Chevy Impala Belair Biscayne, Tubular Upper and Lower Control Arms, Front
I also use all polyurethane bushings, the biggest anti-sway bar I could get, new stock springs and Bilstein shocks. Tires are 235 wide on 17" wheels. Everything else (tie rod ends...) is new but stock. The car is rock solid, a bit on the stiff side, turns flat, like on rails, feels more solid on any road than my wife's BMW 5 series. That car is fun!
And yet, the steering box is still the original piece; the steering is not too accurate, so next step for me will be a police car OEM steering box from Rockauto.
I cannot see what a steering damper would do to my car...
I drove this very same car with its very much abused original, more or less maintained front end, it was a bit all over the road, but nothing a steering damper would have fixed. A new rebuilt front end, and the car will go straight and smooth.