Oil burn cloud on engine deceleration

Highly unlikely it's stuck rings. Sea foam is cheap and easy to do.

Eddy's can boil fuel on hot days when you shut them off. Unless you had a major issue with a float level, stuck needle and seat or something, I doubt you washed the cylinder walls down. I haven't seen that it years, and most of the time the choke wasn't functioning and killed the rings.

Most likely the hone wasn't done correctly and you are now paying the price. Before I started building engines, the machinist I used honed my block incorrectly. I knew it was JUNK because it smoked for the first 25 minutes. His **** hone ripped the faces off the rings on start up. I learned how NOT to finish a bore from him.

A new engine should NOT smoke on fire up. If it does, the rings are probably toast.
OK, lets play detective. The smoking started only once I put the PCV system in. Had it been a bad hone job I would have seen evidence of this earlier. (I have owned the vehicle for over a year now and I drive it as much as I can).

Another "clue" to think about. I had the carb "tuned" by a local carb shop at just about the same time I put in the PCV system. I'm not sure what they did to the carb.

How fast does it take fuel to wipe out rings?