I do not have the schematic but I can describe the layout in my 1952, which I think is stock. One line runs from the manifold vacuum port down to the fuel pump. My truck does not run but it would make sense that this would be the fuel pump port not producing vacuum. The second line goes from the fuel pump up to the wiper motor. These lines follow along the same course as the fuel line and distributor vacuum line. They are all tied together with a clamp at the thermostat outlet.
Chuck
