71 Dart 410 stroker ..

I am putting a proportioning valve in the in line to the rear tires...I am getting rid of the stock metering block that is for the disc/drum set up.....sorry for the confusion....
Ok I get that you are getting rid of the stock valve, but I always heard that for a street car you put the valve on the back brake line and for a drag car you put it on the front because of the fat and skinny tires.