bowtiesr4me, The Compination/Proportioning valve that CCP sells is supposed to have all this built in. I didn't have to install any other valves. Seems to work fine. The pedal could be a little firmer but I am used to it. I think I just need to bleed them a little more. I did notice that when I really push on the pedal, the braket holding the master cyl. flexes slightly giving me that spongy pedal feel. But it it not bad at all. I may try to weld another braket/ brace to keep everything sturdy and solid. Good Luck.