well as for the BS for the front they suggest at least a 7.5" rim so 5" should be fine and 10" rim for the rear. You should be fine w/ 5" BS on the rear. As for your tire size you might want to reconsider. Both those have really short side walls and might look funny on your car. the fronts are only 25.6 and rears 26.6. a 26.6" tire on the back of a b-body is gonna look funny.