Mopar Mitch, you are definitely right on your concern. Air shocks aren't the way to do it, but that's what it's got. It doesn't rub, but then again, it's the air shocks holding things up. Eventually, I'd like to get the springs moved in, proper SS springs etc. down the road. Also a 496 stroker to go with...all in due time.
I didn't have to jack it up anymore than I did with the 275/60's on the 8" Rallye's. The tires are just more massive giving that look of it being way up. It does ride pretty good and doesn't track all over the road like the old Polygas GT tires did. Those things looked cool, but were horrible to drive on. Now it rides pretty soft even with the air shocks in back, doesn't bounce or jar like it did before.
Some of that thing I hated about the Cragar SST and Polygas combo is that it was extremely heavy, putting a lot of unsprung weight on each corner. This combo is a good 10lbs lighter per wheel which also helps the steering etc.