I have already set the calipers on the floor and bled them and I have been thru 2 big bottles of fluid. I just got back with a new master and in hopes that the one that came with the setup is the wrong one. By that I'm not sure the bore size and even if its for front disc. When i bought it from mp I ask for drum rear disc front . I know disc front needs 1 1/8 bore and from what I have read the disc side of the master has a larger reservoir. The one that came with it , both are the same size. It could be for a durm durm setup. Not enought to push the disc pistons. Yes I am reaching but whats left.