well I guess I left one thing out. went from power drums to power disk on front. rear are drum. they are adjusted as far as possible and get the drums on. car stop better backwards than forward.
my thinking on the round metering valve being bad. if I read correctly. it holds some pressure on the front calip. so the pads retains close contact with the disk .if it is not working then the piston draws back further than should. causing more travel to apply. or am not pushing on my master far enough, this is something to check!!