Aftermarket Brake Master Cylinder
#2
There is all sorts of brake master cylinders, the circle track guys have all kinds. How you would get one to fit on an F-body is another story, but the pistons in the MC has different sizes the main 3 are 3/4, 7/8, and 1". Howe, Afco and a few others make them but this should get you started.. If this is even what you are thinking.