63 Fairlane/Falcon master cylinder, brake help

[GS455vert]

I have a 63 Fairlane which shares the same braking system as the early Falcons and with the current popularity of project Falcons these days I hoped someone could help me out? I have changed out the complete system using a Granada 11" swap in the front with a 11" Yukon (explorer type) swap in the rear. I am using a Willwood proportioning valve with Brake light switch, and all new lines. I have used a new (8-10 years ago) Maverick non-power Disc/Drum larger bore M/C which seems to push fluid fine on bench and in car (bleeder lines attached), but can't get more than a dribble at calipers even with mighty vac. Any help appreciated!!