I ran 10" Ansen slots on the back of my '66 GTO in the '70's with 50 series bias ply tires. I had to roll the stainless trim and use air shocks to clear. That said, these rims (still have 'em) have a ton of positive off-set (deep dish) and that was the main problem. I think a properly offset rim with enough negative off-set might work. I ran 11" slicks on the back of my '65 GTO on 15x8 Chevy rally rims, and it cleared no problem at stock ride height. The Chevy rims had a lot of negative off set.
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Jeff 
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