Quote Originally Posted by jerry clayton View Post
Rears never worked well? but you had a proportuning valve in line to rears to reduce the pressure???? don't make sense???In your picture on the table you got drum backing plate/shoes, discs with internal drum parking brake , Wildwood and oem type calipers------

Disc brakes take more line pressure and are rarely decent feel with manual master cylinders and I also think that 1 1/8 inch bore would be pretty hard to push without a good size booster. Have you ever put gauges in to read pressures??
Jerry,

I put in the proportioning valve to tune the brakes front to rear. However, I've always had to have it wide open. No, I don't have a pressure tap. If this setup doesn't work, I'll do some more measuring.

By the way, I had this same master cylinder with manual disc/disc brakes on my full-fendered steel A-Bone with a big block chevy, and it stopped on a dime.