I have the zr1 wheels with the camaro offset. 17x9.5 in the front And 17x11 in the rear. What is a good size tire for a 96 camaro. I was thinking 315 and 275.

 

You've got this posted in the "Suspension...." forum, and here on "General.....". It belongs in one place, and that's in "Wheels and Tires". A search there will turn up numerous posts regarding the ZR1 wheels and tires in the sizes you asked about.