Biggest tire in Stock rear fenderwells

Biggest tire in Stock rear fenderwells

I'm planning on 275/60x15 in my '69 Dart with SS springs and a spring offset kit. I've already bought my 8" wide rims with 4.5" backspacing. I'm going to narrow the existing B-body (installed by prior owner) to center the wheel/tire package in the available space.
Measurements say it shouldn't be too much of a problem.