HELP with master cylinder 4 wheel disc

To joel; why no prop valve? Just curious... Will it be 50/50?
It would be, if all pistons were same size. Typically, however,the fronts are way more powerful. Typically the fronts do upwards of 80 % of the braking. If the back gets to be too powerful and locks up first, then spin outs are imminent.Not good at any speed.:oops:

And to OP; when you receive your new m/c, check it for residual valves. Remove any that you find, from ports destined to have discs. If you do not theres a very good chance that the pads will remain dragging on the discs.