I am wondering what type of Mikuni Carb I have? I have looked on the carb as best as I could to see what model specific it is. Are all of them the same?

I have '88 Ram with the 2.0

It's running rough and me and a guy are thinking that it's the carb. He is willing to rebuild it because I don't know much about these Mikuni's except for what I have seen and heard on here about that they are a pain in the rear.

I did buy a Weber 32/36 off of Facebook marketplace and the guy that is willing to help me doesn't think that I need to go that route yet since he is pretty much set on rebuilding the carb for me.