I have the same brake swap and I have the drum distribution block and a wilwood proportioning valve in the rear line only. You will want the adjustable proportioning valve in my opinion. I got some rear wheel lock up the other day and had to take a little rear bias out. No need for a residual valve with disk brakes when the master cylinder is in the stock location. I have an 80's aluminum master cylinder (1 1/8 due to Hydroboost).