Proportioner goes in the front system. Large rear drag tires will over come skinny fronts. When I first used Will Woods in 93 we wiped a pair of rotors in one season. It was the pad material. That 2nd pair of rotors were good until 2016. Two different cars, same set of rotors transfered to a faster car. Doug
DVW, Why does the valve have a front and rear in port and 2 - front and 1-rear out port?
Valve has 1 in then 1 out going to the line lock. Line lock has 1 in, 2 out with 1 of them plugged as the front line T is further down. Doug
