I’m in the process of converting to 4 wheel disc brakes on my car. I bought the wilwood master as well as the combo prop/dist valve they sell. What I didn’t consider is that the electrical connection is merely a pressure switch and not a “warning” light.
I’m now considering buying a more traditional distribution block with the warning sensor and plumbing in a separate Prop valve.
Have you considered reusing your stock drum/drum or disc/drum (whichever you have) distribution block? If you have drum/drum, you just plumb the adjustable proportioning valve after the distribution block (in the rear circuit), if you have disc/drum, you remove the “cigar” proportioning valve and replace it (with the appropriate lines) with your adjustable unit.
The reason I suggest this is that in this way you can leave the brake warning switch and some (or most) of the brake lines as they are.
Do you need the warning light? On the race Cougar with the Wilwood setup (like you have) I just wired the wildwood pressure switch right into the Cougar wiring harness to operate the brake lights. No warning light and don’t think it is needed. You’re not worried about having it stock correct? If you’re installing the Wilwood setup.
Oh yes. feeling the joy. I’m also working up the nerve to knock out the hole in the firewall for the clutch linkage. My car was an auto… and it was going to be an auto. already painted and I had the great idea to install a manual.
Here is a picture of my install. Yes, I had to do it twice to get it right. Actually three times if you count this weekend when I discovered that the hood hinge was going to hit the clutch reservoir.
