What about raising the front end?

[68 custom]

I'm new here so I havent seen alot of the suspension threads. There is tons of info on lowering trucks but not so much for raising. I have a 68 GMC 3/4 ton Custom Camper. I wanted to raise the front to match the back (about 2") so it sits level. I installed a set of 3/4" spring spacers that gave me the lift I wanted. Does anyone know what kind of alignment problems I might run into? Right now it is scrubbing in tight corners (like when parking) so bad that the tires squeal. I had it aligned but I am not real confident in the work that was done. I'm just wondering if the spacers may be messing with the geometry enough that it is outside of what an alignmrnt can compensate for.