I did a search, still a little hesitant, due to the clarity.
Basically I cut the fuel line on the bottom of the stock FPR install the end running to the fpr on the bottom port that says out, and the other cut end onto the side discharge port. The vac. line on the top tees off on the vac. line coming off the fpr.
Is this correct?

 

Top part, connects to an intake manifold vacuum source. Side port, the rubber fuel line from the Fuel pressur eregular, goes there. And the buttom port of the FMU, that returns to the fuel tank.