Quick update....
Ran the MFI fuel pump with the injection pump feed disconnected and into a wine bottle. Started to feed the bottle after 5 seconds or so and the flow was good. Reconnected the hose to the injection pump and ran it again for a few minutes and checked for leaks.
Fuel pump sounds good and runs cool to touch.
CDI sings like a bird !!
Still looking for suggestions on how to disconnect it though so I can crank it without starting...