First 2 pictures show the vacuum advance line from carb to distributor, as it should be, although we can't tell if the fitting is tight and not allowing vacuum leakage. 3rd pic shows vacuum port and line from manifold leading inside cab which should connect to vacuum wiper motor. If you are hearing a hissing sound in the cab, it's likely you have a vacuum leak on the line from the intake manifold to the wiper, or your wiper motor is leaking.
There should not be fuel coming out of that distributor vacuum line at the carb. I think you may have leakage elsewhere on the carb.
