Yes, there is. Sounds like you just identified where that hose goes.

 

JGreen236,
Sorry for the delay, but I've been rather busy and haven't had a chance to get outside and take the pictures. I did tonight, and here they are... better late than never...

an overall view




they run into a tree at the intake manifold


I am pointing at the Brake booster vacuum line where it goes to the tree.


Again, sorry I took so long. I hope these help. If you want to see more, they are here:
My 1985 Ford F150 4x2 pictures by Grubbworm_photos - Photobucket

 

Alright so all day yesterday and today I got fed up and started yanking out all my lines =P went to the store and bought all new lines of course. A few questions... first what is this?

There were to plugs into it one of which was for the AC that I tore out. I think another line goes into the cab...i'm guessing for the cruise control maybe?

Second question...

What is this tree for? And can I safely remove it? Its all one piece to the tree on the right which goes to the carb and egr.

 

The second lookslike a temperature-actuated vacuum control valve (VCV) it should be on your
vacuum diagram on your radiator support under the hood (here's mine for reference):