1968 Dart Proportioning Valve Plumbing? Which lines go where?

^^And on that note^^ the naysayers claim you must have a disc brake master. When I had mine together, it uses 73/74 Duster front disk, and a Lincoln Versaille disk brake 9" rear. I ruptured the residual valves in the STOCK drum master with NO OTHER changes.

Frankly if guys need a prop valve and have to buy one anyway, I'd use an adjustable aftermarket. Changes in caliper/ rear cylinder size and differences in tires.......................