I have a 1990 "P" series. The chassis was built in September 1989. It has a quadrajet carb in it. The model # on the carb is one that no one can find because it was one of the last of them. It seems that it was within a few months after that they went with the throttle body.
1990 28' Georgie Boy, 454, 4bbl, Thorley Headers, Recurved Distributor, 8.75 mpg. RVM 76
CAMPING: WHERE YOU SPEND A SMALL FORTUNE TO LIVE LIKE A HOMELESS PERSON.