Well, we are helping the environment by using these old vehicles....no need for factory polution, steel manufacturing, etc, etc building new trucks.
But I agree, keep the smog stuff on them as much as possible. I hated to do it in a way, but I kept my egr,cat, charcoal cannister, exhaust mainfold valve, etc. on my new 383 when i put her in it. By putting a new engine in it, no minimal smoke goes into the atmosphere due to burning oil etc.
But keep the cats on. There is a federal law. Whether it is enforced or not is beside the point. My children and grandchildren (in the future) will need to breathe.
Stepping off the podium now.....
Sgt. Del