well i am going to put my money on the master cylinder AGAIN!! so now i am going on my 3rd master cylinder in what 8 years! i started with a 1 inch bore and it was pretty good then i was told to go to a 7/8 so i did. well guess what its failing again. No fluid loose or leaking i bleed it it holds for a while then it fades again. the fluid is nice and clear. So i am getting sick of wilwood now that i have to change it again. So what master cylinder are you guys running in your fc and what size bore are you running? I am thinking about going back to the 1 inch since i didn't have any problems with that one.
