Looking for pics info on installing ZR1's on 2nd gen. F-body

[BlkBird]

Specifically Firebirds, specifically 11's in the rear. Im pretty sure Ive seen it done, though people on other forums are telling me it cant, I know here, nothing is impossible, lol. Its been a long time since Ive been here, hopefully I can get some good info, and this time I'll be here to stay! Im looking for the late '80's type ZR1 wheels, the 17x9.5's for fronts and 11's for the rears. I KNOW I'll need adapter/spacers, but so what, that's no big deal. Im relatively certain Firebirds can swing 11's back there with a little seat belt budge "nudge" and maybe rolling the fender lip. I know Camaro's body lines are limiting when it comes to this...but I dont own a Camaro either. Oh, they would be going on a '71 Firebird btw.