SS
I have the exact same setup on my car with the exception of master cylinder size. I'm not sure your caliper piston sizes are the same as mine, but mine are the 12.18" Dynalite's. I changed my MC sizes to 5/8" front and 11/16" rear, since I couldn't get enough pressure with the original 3/4 F and 7/8 R setup. When you adjust the balance bar bolt, moving it from left to right or vice versa, you cant see anything move. It is moving a pivot point on the inside to change the bias from front to rear. If it is really sloppy, you can remove one of the nuts, screw the MC rod and rotate the clevis to tighten it up. Look at the pic here of the BB out of the pedal assy.
http://www.wilwood.com/PedalList.aspx
Brad W.