Old 15x6 Cragars, Tire Size?

They're good for info and when I was using a service station that that was affiliated, it was convenient.
Next set of Firestone A/T for my wagoneer, I'm just going to Firestone.

My Indy 500s still look pretty good. I get concerned about cracks on the main surface, but not so on the raised ends of the treads. its definately a judgement call.

Anyways it looks like 225/70 on 6 is OK but the tire may be a little bulged. May get better contact patch and tire support with the 215/70 on the 6.