I'am using a 75 Ford Ltd 4 wheel disc master cylinder not sure of the bore size. IMO I think having your system under the floor and using residual valves,impedes the system. Thats Just My Opinion! It took forever to bleed the system especially the rears! They worked good! I just recently relocated my brake pedal master and booster to the firewall. Bleeding the system was a breeze this time.

 

I'm running power, but utilize a manual MC because the offset on the piston for the push rod. The manual is more inwards about 1" and the power is nearly flush with the end. I'll check the Chrysler and see if they'll work. Thanks. Just for info... The manual Corvette MC is 1" and the power one uses a 1.125".