Well a vacuum advance works off an intake or carb base plate vacuum port.
It will have the most vacuum at idle. As the engine speeds up, the vacuum drops off, and the mechanical advance takes over on older style distributors.
Newer ones can use a combo of vacuum advance and electronic control, or straight electronic control.
From the sounds of it, yours is hooked up correctly.
As for the rest of the vacuum lines, open the hood and look up.
There should be a rather large sticker on the underside of the hood. It lists your engine info, and a vacuum line diagram.
If yours is missing the sticker, just Google "89 wrangler vacuum routing diagram"
And you get this.