1981 Lincoln Mark VI vacuum diagram.?

I just purchased a 81' lincoln mark vi. it has the 302 v8. (These things are notorious for vacuum leaks) i don't have any leaks but i know a few components that i know are bad. but i would like to know what the heck they are?! does anyone know where i may ind the diagram for this with descriptions or at least names of the components with it? thanks! (sorry for horrible spelling in a rush)