I have 2 vacuum lines off of my fuel 312 Y block fuel pump. since the engine is not original to my 55 F100 I am not sure where they should lead. Any diagrams or pics would be helpful. Wipers are not connected so I am thinking they get involved in some fashion.

 

Connect the suction side of the pump to the wiper hose. I forget where the other side from the pump goes. If I remember right, not important.