Soft brakes after rear disc install

BillGrissom said

I think you mean that only 1 front tube will exit the proportioning valve, in which case, you should block the other front output port (FO). Autozone carries SAE inverted flare plugs in bubble packs (or did). Presumably, a downstream tee goes to both front brakes. Perhaps what you mean by "drum-drum distribution block". The rear

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yeah, the brass distribution block was used in drum/drum cars. Factory cars with disc front and rear drums had a slightly larger brass block that was referred to as a proportioning block. From my understanding, the drum/drum block is, essentially, a straight through T fitting for the front circuit and a coupling for the rear circuit. Both the distribution and proportioning block have the same line placement. Front circuit in the top of block with 2 lines going feeding the front brakes. And 1 rear brake circuit feeding the one brake line heading to the rear.

I would like to place my adjustable proportion valve between the master cylinder and the drum/drum distribution block. This exact unit has the option to directly feed both front brakes which I don't want to do. My question for the group was if there would be any problems with plugging one of the outgoing front circuit ports and sending the other to the incoming port on my distribution block.