[bobcowan]

The Wilwood tandem MC is nothing special. You bleed it the same as you would a stock MC.

Start by "bench" bleeding the MC. Disconnect both brake lines from the MC. Connect short pieces of brake line that go back into the MC resevoir. One for each outlet. Then gently pump the brake pedal until there are no more bubbles. Then reconnect the brake lines. Move quickly so you don't loose too much fluid. As long as you don't touch the brake pedal, there's no risk of allowing air back up into the MC.

Bleed both front and rear calipers at the same time. That allows full stroke of the MC. Wilwood calipers have two bleeders, and you need to do them both. If they're properly installed, the Wilwood calipers are very easy to bleed.

Invest in some Russell Speed Bleeders. I have Wilwood calipers all around, which means 8 bleeders. I can bleed the entire system in <30minutes.