Brake proportioning valve

I just bought a reproduction piece for 71 Demon, I did the disk brake conversion. They are actually distribution blocks and not proportioning valves...even though they are called proportioning valves. It was right at $99 shipped and it's a nice new part. www.doctordiff.com The best way to get in touch with him is to text him. And that 76 Volare part won't work...just saying.