I like the style a lot!! Black wheels with the black stripes...very nice! Great looking car, man.
I'm wondering if you could run some spacers on the back to push them outboard a bit...I realize that the narrower rear track is a standard A-Body thing and it probably wouldn't help handling....but I think you have the room.
EDIT: just saw above that you'll be swapping in an 8.25" rear. That will move your wheels out a little anyway.