tire clearance issues

I'm running 14 x 7 wheels and 245-60-14 tires on two of my 70 Darts, but I could never get enough clearance inside next to the springs, without moving the springs in 3/4 inch with the kit that MP designed and others now make. Even with custom offset wheels, once I had the clearance for the outside at the fender the tires ran up against the springs...