I confess that the one thing I really hated about cars was carburetors. To me, the move to “reliable” fuel injection completely changed our relationship with cars.
I had a German car in the 70s that had a terrible stall and rough low speed problem that could not be found. Turned out to be a carb that had a Venturi suspended in the main intake throat that was loose and wiggled at certain idle speeds. Most of the time you could have the air intake off and look right at it and could not see it. The dealer couldn’t find it. I finaly saw it myself.