Oh, that solves the mystery of the missing flare fitting. I have two problems with plugging it. One, it will throw the alignment of the front caliper lines off, its hard enough to attach them in the bone stock positions, but, two, if I plug up the other two openings, and attach a brake line to the third opening and blow into it, air comes out of the opening without a fitting no matter if I have a plug or another line attached to it.
Thank you for your input, I think I need the correct junction block, anyone have one?
A final thought, I found an adapter on Universal Hose and Fittings that screws in and has a flare fitting. I wonder if this would work? Yeah, but the correct junction block is what I need.