My '68 originally came w/disc brakes w/4 piston calipers. Over the last 3 yrs, I switched the calipers/lines to re-built single piston calipers, replaced power booster and the prop valve (3 times as they've kept leaking).

I just replaced the master and had problems bleeding the fronts. The prop valve was not letting fluid through and the button on the back was stuck, so I was able to exchange it (once again from Right Stuff) for another, but I'm still having trouble bleeding fronts(rears bleed fine)

I am considering replacing the OE style Prop valve with an adjustable after market (wildwood,ssbc), but in doing so, I'm wondering if my lines are running correctly.

The line from the rear of the master goes straight to the distribution block (correct name?). The line from the front of the master goes to the front of the prop valve, out the prop valve and then into the block.

From what I've read about adjustable prop valves, these are supposed to be placed on the rear lines, not the front..??

What will I need to replace to get away from the OE set up on this?
Thanks,
Wayne