1980 F-150 Vacuum Line

I'm just woundering if anyone knew where I could find a vacuum line diagram for a 1980 F-150 striaght six 1bbl carb, C-4 auto, 2wd. i first noticed that I needed a diagram before I bought the truck. The tag isn't on the truck, must of been torn off over the years. The owner sliced the lines and used screws to pluged them off with. I wanted to get her going first before I worried about the vacuum lines next.