10 or 10.5 fit in 4th Gen without too much trouble.I'm wanting the 77 to be a street legal small tire (26x8.5) drag strip killa!
The car is a running driving car but it has a Pontiac 400 and a Pontiac 400 tranny...It needs work on the driver side front door edge and the rear of that same side fender. I'm thinking about a full cage, I've got a Ford 9" at the shop for it and a built 350TH tranny if needed. I'm not expecting the Pontiac eng./trans. to stay in it long.
My brother had a 400 Pontiac he used at the circle track I almost put in mine. Too intimidating at the time for a 17 yr old.
Anxious to see.