'65 Valiant. Will 15x7 wheels, 205/60/15 tires fit?

Bought my '65 Valiant with 8X15 cop car repops, 4.5" back spacing with 195/60's all around. Put 215/60 Tires on the rear with no problems. 225's will fit as equipped but if I want to step up to 235's on these rims I'm going to need to move the springs in a half inch. I think the 215's would be good on the front but on the 7"/4.25 back space wheels, not the 8" wheels.
Bob