Well, I read every single post and thread relating to tire sizes on E-body cars (whew), and to avoid being a guineau pig with 10-inch rims, a welding torch and spring relocation kit, I've decided on this combo for my 1970 Cuda convertible:
15x8 rallyes with BFG radial T/A 275/60-15's on the back
15x7 rallyes with BFG radial T/A 245/60-15's on the front
I ordered them from Summit Racing for $1079, mounted, balanced, delivered with trim rings, center caps, and lug nuts...
As soon as they come, pics will follow...
NZ440RT and Chryco thanks so much for all your posts, it helped a lot!
-- BTW: My 2006 Magnum SRT8 will be arriving on Jan. 25th! 425hp! (gulp) ---