Dunno about the Cherokee 180 but the Arrow POH has as its very last entry....
"Prolonged slips or skids which result in excess of 2000 ft of altitude loss, or other radical or extreme maneuvers which could cause uncovering of the fuel outlet must be avoided as fuel flow interruption may occur when tank being used is not full"
I don't normally find myself spouting contents of the flight manual but I happen to have just read through mine yesterday.
Not sure why it mentions 2000 ft of altitude so specifically. I *think* what this is saying that if you have an emptyish tank and hold a slip long enough then the fuel can slosh away from the tank outlet and stop your engine running!