Would you only need one? and would this be a better idea then runing a stock type prob block? does anyone on here run something like this? if so how do you have the cars line presser front/back set up....

 

The most common move, is to go to the 4th gen Master, run the front lines straight to a T, and then put the prop-valve in on the rear line. This gives you full pressure to the front, and then you dial down the rear pressure to fit what you car and brakes want.

You could also mess around with diffrent MC bores from factory cars, and aftermarket stuff like wilwood to get the pedal feel and pressure you want.