stock car, nascar, 67 dodge dart 15x8 front wheels

I’ve run 15x6 with 4” backspace with 245/60/15 in the front of my 68 Dart

Without mods, it will rub bottom front fender corner.

You have to really push out the bottom of front fenders. You can do that with redrilling the fender support rod at the bottom of front fender. You drill the hole 3” or so forward and it will push out the bottom of fender.