I don't know for fact if Nevada is less fascist than California when it comes to automobiles.
It's a shame as green as they'd like to be that they can't see the forest for the trees. To me, if it passes the sniffer, has all of the current required devices (EGR, Cat, EVAP, etc.) then they shouldn't be concerned with the powertrain vintage. One would think they'd applaud the recycling effort

Hell, most of the people who are in to this tune to make the cars more efficient than the factory did.
I feel for ya man. One suggestion before I hit the send button: Hit Turboford.net and ask the guys there. I think there's some left coast members there who may know the hard facts in this case.