I'm late on this one, but I agree with Jim on this one. Everthing seems to point to the master cylinder. If you had a hard pedal after you bleed the back brakes, then it goes to hell when you start to bleed the front, a bad m/c could be the cause.

I'm not big at hit-or-miss part replace as a way to solve a problem. But it's common for m/c's to be bad on the shelf, and m/c's fail on a regular basis--from 85 to 91, I had installed 3 on the car. Sure enough, a new m/c cured the problem.

As winners, since Jim and I both have 9's, maybe you can find a common part that we both need, and we could alternate which car it's on every other week.