Roy, I asked about your question over at Binder Planet and got this response:
"...it has been used by thousands of people doing this conversion.
The answer lies in the system design.
The regulator is on the outlet side of the injector. So it maintains the pressure constant from the pump to the injectors.
You can see this
http://www.binderplanet.com/forums/showthread.php?p=298293#post298293 for the details on how it is set up."
At this point I am going to move forward with what I have, and will describe any issues I may come across with this setup. Thanks!