...For a '68 Camaro (may be the same other years, ...but '68)
When did a car come with the A.I.R. system? ...and when did it not?

I have a BB car, ...but assume it shouldn't matter BB or SB.

Thanks,
Kevin

All US 1968 396 camaros had A.I.R. I don't think canadian exports had A.I.R.

http://www.camaros.org/emissions.shtml should answer all your questions. :)