Good morning everyone,

I have a customer with a 1967 Ford Mustang. About 6 years ago, he bought a disk brake conversion kit for the front brakes. The kit came with a new brake booster (there was no brake booster on the original setup), new 1" bore master cylinder, disc/drum proportioning valve, calipers, brackets, etc. He installed everything himself, but the brakes never seemed to work as expected. The system has been bled to death and there are no leaks anywhere to be found.
I have a...

What should the pressure readings be on the Master Cylinder?