As I recall the Trans-Am was downgraded to the 305
Maybe just California
Maybe just California
California has always been the most heavy-handed with this stuff, so it's quite possible. IIRC, the non-California specs dropped to the 305 if you wanted a manual transmission, but the 350 could be had with the automatic. That never made sense to me. I guess shift points and rpm could be better managed with the automatic (a total farce, since the transmissions were easily modified for little cost).