72 duster wheel and tire fitment

225 65 15s up front on 15 x 7s
255 60 15s on rears on 15 x 8s, 4" BS

Nice size setup, gives you a 1" Rake from back to front. Decent width tires in rears, can goe next size bigger rear tires, but that is getting too big IMO.

The Guys at Tire Werks told me the same thing. They also said 65s in the front is the way to go, not too short, not too tall.

Good luck, no easy task picking just the right wheels and tires to fit your setup.
Going over some of my old records:

215 65 15 fronts on 15 x 7s
255 60 15 rears on 15 x 8s
This is what I used to get the 1" rake from back to front.