Nimble,
I'm running Image bolt-on replica wheels on mine, 15x8.5 RR w/6.00 BS and 15x7.5 FR w/5.25 BS. Currently, my tires sit right at the outer edges of the wheel wells so I figure these will sit just inside of the WWs in the RR and I may have to add a thin spacer in front to keep them from hitting anything on turns. I'll let you know for sure in about a week when I get them.
Mike
BTW, I'm running '87 suspension.