if you fooled with the master cylinder, you have to bleed it first.

whenever you bleed a caliper, it isn't ready until you get a solid stream of brake fluid. close the bleed nipple while fluid is still coming out (under vacuum from the mity vac, or under pressure from the brake pedal).

after bleeding the mc i would use the brake pedal and pal approach to bleed the lines, since it sounds like they are empty. it's easier to push fluid with the mc pistons than to pull it with the vacuum.

__________________
Prost!