When I tried it, I remember measuring a backspacing of around 5.25" on my 91 wheels, and around 7" on my 4th gen wheels. That would mean 3rd gen tires on a 4th gen car are gonna stick out almost 1.75" more from where they are now.
Guess my memory ain't so bad...sometimes: Handy Camaro Wheel Guide

 

Hm that might indeed look weird. I guess I will find out eventually. Either way my brother wants the Z06's... But I might have to keep looking. Thanks again for the help guys.