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

I have a 67 dodge dart with 15x8 and 240/60/15 in the rear and 14x6 205/70/14 in the front, no rubbing issues but I'm trying to go with a more aggressive stance and driving and wanted to see if any of the members of this forum has ever tried running a 15x8 with 4.25 backspace with maybe a 215/60/15 tire up front.