Carburetor replacement now need vacuum diagram

I am switching from a Holley 2300 2BBL carburetor to a re-manufacturer of the original Motorcraft 2150. Since I can't find a book for the van or anything online about vacuum routing, I am asking here.

Yes, I know its a backward swap, but the Holley isn't working.

I have to find out where all the vacuum lines need to be routed. Of course there wouldn't be instructions in the box. Please help!