Bleeding prop valve, how the hell does it happen???

[sixty4bigwindow]

Ok, system is all hooked up and sealed. But now trying to bleed it has been a nightmare. I have the cpp prop valve connected to a dual reservoir MC from a 73 c10. Is there a special way to bleed since it has a prop valve?? I tried to bleed with a vacuum bleeder and with a buddy pumping the pedal.. nothing. Ive seen a prop valve bleeder tool online, is tht what i need to bleed the system properly??
Thank you in advance!