1970 Barracuda Reanimated.

[mtull]

I'm glad you have skills (and tools).

[Marty]

My Barracuda came with disc brakes on the rear axle, so I had to come up with a new brake line system for the master cylinder. I was able to use most of the pre-bent lines that came in the disc brake line kit.

First thing, I had to find a distribution valve for a disc-disc brake system. I did a lot of research and finally decided on the GM PV72. It is mentioned here. https://www.forebodiesonly.com/forum/threads/proportioning-valve-4-wheel-disc-brakes.24235/  Post #4. I got mine from Classic Industries.

I was able to use most of the fittings from the disc brake line kit. I found the rear brake adapter at Summit Racing.
3/8-24 to 9/16-18. AGS BLF-28B. $4.99. (I've seen this adapter going as high as $30 on the web.)

I also found the Distribution block bracket at Summit.

I used Ni-Copp brake line. Easy to form and easy to flare.

To add, I used a couple of union fittings, a T block and some brake line armor.

For the most part it was straight forward to connect the pre-bent lines to my custom-made lines. The tougher part was forming the lines from the distribution block to the master cylinder. Not too much room to fit the lines under the master cylinder but after some bending practice, I got it done. 

To aid in connecting the PV72 Disc-Disc block, I drew out diagram showing the fitting sizes and fluid flow.