Emissions- how does one....

[SunSoaked]

Keith-once again you're awesome. Thanks you sir for the link and the manual. It has answered every question I had on my 85 I recently bought.

My spid shows that it was originally a CA truck (YF5). The PO bought it in CA and brought it back (and registered it) here in AZ. We don't have emissions checks here, only in the metro areas. That's great, except, I plan to relocate in the next few years (place unknown-depends on job) and I was trying to think ahead in case I end up somewhere that has smog checks. All the emissions that were removed are long gone.

This moves my concerns into the next issue of engine swaps. I would assume (probably wrong) that there exists some sort of standard language about swaps? If you swap a later engine with FI into an earlier vehicle with a carb, how can it be possible to retain the original emissions (CHA, AIR, TRC, etc.)?