First off i have a NOS vacuum advance coming in today, i assume the only testing is to see if they pull a vacuum and hold vacuum correct?

Secondly, how do these lines attach?

Im reading my holley pressure type dist service manual that came in today reprint of the august 1955 issue, it doesnt show vacuum routing nor a diagram of a dual reservoir but it does state there are two vacuum lines one that is ported vacuum that has a passage jhst above the throttle plates and the other goes to the side of the carb for the spark delay valve.

But the brass elbow i got i was informed has the ferrell line goes to the dist and the flared line goes to vacuum for the wiper motor or to the dual diaphragm fuel pump. This would be manifold vacuum.

Is this the correct hookup for this on a 56 with the correct holley 4000 carb?

Want to make sure cause this service manual is implying the dist shouldnt be manifold vacuum but only ported vacuum.

1956 Ford Fairlane Town Sedan - 292 Y8 - Ford-O-Matic - 155,000 mi