I installed PRJs fp rewire a year or 2 ago. I do have the PnP kit for installing a boost a pump. I do not have any instructions.
I have the instructions for the MSD unit itself. Does not seem like a issue EXCEPT it states that the relay that comes with the MSD unit must be wire to the factory fuel pump relay. Problem is, it does not say what pin on the factory relay.
Wiring diagram is here (PDF takes a few seconds to open):
http://www.msdignition.com/instructions/Products/2350_instructions.pdf?terms=2350