Widest Tire/Wheel combo for a '72 Duster?

255's on the front of my Demon, 25" tall. It all depends on your wheel backspace, ride height, front suspension, brake offset.....These have 8" wide w/ 6.5" of BS, nothing stock on this car though.

I have full turn w/ the racknpinion. I bought a couple of craigslist mustang wheels measured the backspacing and ordered my wheels accordingly. The pic is about 1/2" lower than ride height

Excellent information! Thanks for the input. The 235's I'm looking at 26.10" tall and the 245's are 26.60" tall. Are you running an aftermarket K-Frame?