First I installed speed bleeders as I had to do the brake bleeding by myself. I tried the Shop Manual approach (see above) did not work at all. Then I installed a short length of brake tubing I had, to the output fitting from the master cylinder and ran it back into the master cylinder making sure it was covered with brake fluid. I pumped the brakes five or six times...out came some air bubbles, then none and the pedal got hard. Put the regular brake line back on the Master Cylinder and bleed the brakes. Bingo. I have brakes and they are not at all spongy.
The speed bleeders worked good, although I had to really get them tight for them to seal OK.
390, Mild Cam, Headers, 3.70 rear, 2-1/2" Exhaust, Edelbrok Performer RPM Intake, Holley Street Avenger 670 Carburetor, One Wire Alt, Petronix Ignition. She's All Go and No Show.