73 duster 17" or 18" wheels ?

I finally selected a set of wheels for my 73'Duster. They are Cragar Eliminator 500's in 17x7 (4.25" BS) front and 17x8(4.5" BS). The original tires selected were NITTO 450's 225/50/17 Front and 275/50/17 Rear, but the fronts rubbed the fender and rears were to tight for my taste. So, I ended up going with Conti's in 225/45/17 front and 255/45/17 rear. Adjusted the suspension and couldn't be happier with the end result.