67 to 74 disc brake conversion, PLEASE HELP!!!

When I bled the master cylinder, i bench bled what i could in a vise, then put it in the car and ran the lines out of the MC and back up into the fluid in the resovoir. evertime i hit the pedal it would push out air and suck in fluid. The wheel problem is definately alignment, you can dial it in a bit with the tie rod end but will need it done professionally. Before I bled the brakes, i left the top off the MC, filled it up, and cracked my passenger rear cylinder, and just let it gravity until i seen the drip, then proceeded to actuallly bleed them. Did the same for the rest, and I had no problems. The grinding could possibly be the dust plate? Not sure on that one.