Time to Buy Tires for the Duster......help please.

I run on my '74 Dart Sport i run 14 x 5 1/2'' rallyes on the front with a 215 70 14 tire with no problems.
On the back, i have a '69 B-Body 8 3/4'' stock width rear with the spring perches moved in 1'' total to make it the same as A-Body spring width with a set of Super Stock (002 and 003) springs which raise the back end up considerably.
The wheels on the back are 15 x 6 1/2'' factory BBP rallyes and the tires are 255 60 15s. The offset is about 3 3/8'' inward.
They fit well, but i rolled in the inner lip on the quarter anyway, just to make sure they didn't slice the tires.
Here's a few pics...........

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