I can take some pics tomorrow. The dual cylinder has 2 ports. One for the front and one for the rear. The front line splits about a foot and an half away from the master. The rear splits at the rear axel like the stock system. The RSV valse are installed about 5 inches away from the MC.
I took the rsv valves out today and hard piped from the mC to the front and rear lines just to see if that made a difference. It is better but i am still getting air no matter how long I bleed the system.
When I was re piping I blocked off the MC and put pressure on the pedal. It was firm and did not sink at all over about 30 seconds of pressure. I have no fluid leaks but air is getting in somewhere.
I did have one bad wheel cylinder which I replaced… I really thought that was the issue.
More to come.