New lift now tires rub, wheel spacers?

I put my 4" procomp lift on my 79 cj7 and now my 33x12.50 tires are rubbing on the springs. Just the side lugs at full turn, on both the front and back side of the spring. I have new Black rock rims but I made a wrong decision on the offset 6 months prior to getting the bright idea of a lift. Wheel spacers are my only option at this point. I think I only need an 1", I have some 1/4" I'm gonna try but I think I will need more. My stance is pretty narrow so I need some expert advice on spacers. I don't need to hear how bad they are. Just some good recommendations.