Every state is different with their inspections and Smog checks. I know for a fact that there is no way in hell, even with all 4 stock cats and EGR connected you'd get a car with a b-cam to pass smog here in NJ. Hell i have high flow catted bbk x pipe and stock cam (no egr) and just passed sniffer (first time i failed for NOx, but then a month later NJ no longer checked for NOx so i went back and passed lol)
I am in southern California I bet the sniffer standards are damn near the same as NJ. As I said I passed the sniffer just fine and I bet it would pass the sniffer in NJ too. I could have been picked apart on the visual but I got lucky I was not.