i got 255/50/16's on the back (and front) of my Nova on old Trans Am GTA honeycomb wheels, and they clear just fine. a slight bit of rubbing on the framerail over weird angles liek driveways and what not, but clears otherwise. don't know the backspacing of the wheels, as i haven't measured yet. don't know how much this applies to a Camaro, tho.
you don't plan sincerity.
you have to make it up on the spot.
wanna hear about 20 years ago when i was too smart to know any better?