Any install a catalytic converter on a 1st gen? I'm asking, because I've got a strong fuel/exhaust smell that has always been with this motor, before and after rebuilt, and after several exhaust mods to see if I could get the smell to vent differently. I've checked for leaks, and havent found any. Also, It did this with 2 different carbs, and the EZ EFI system I currently have. So, I'm curious if anyone has put a catalytic converter on a 1st gen, and if so how...seems pretty tight. Thoughts on the idea?