Front Disc Conversion-Proportioning Valve and Master Cylinder
I converted my car to disc/drums. Bought a stock disc drum MC and a factory proportioning valve from somewhere-probably from someone here.
I mounted the proportioning valve in the factory distribution block location after installing a rebuild kit in it. I just built new lines as needed to make it work.
It isn't the recommended method to rebuild the prop valve but they make a kit with good instruction and my car stops on a dime.