[oredith]

i assume fluid was coming out when you were pumping and bleeding the breaks?.. i don't think the MC is the cause of your problem. First off, you're sure all the bleeder nipples are on the TOPSIDE of the caliper, right?.. if the bleeder valves are in the right place, and you followed the bleeding procedure, the proportioning valve might be the cause of your problem, air can get trapped in that. you can bleed that by cracking the line at the prop valve (the line that comes from the front of the car)

good luck,

Jeff