315 or 325 tires on early a?

Ok here are some pictures of my Dart with the M/T DRAG RADIALS 295/55/R15. My car is mini-tubbed to the frame rail. Outside clearance is about 1" inside near frame rail about 1.25". These tires bulge about 12.2" on a 10" rim. As I stated in earlier e-mail the Mickey Thompson ET streets 28"X 12.5 actually bulge 13" and without the sway bar will hit either side of the tubs. Jayson