Bbody rear and Tires

I had my b-body rear narrowed slightly. With 16x8" wheel with 4.5" backspace and 255 tire it will just clear the lip of the opening. I've got offset springs, though I don't need it with this combo. I could fit a 275 with a wider wheel and another 2" of backspace but that doesn't leave a lot of wheel dish.

Now, if you're into jacked up rear ends....