If you have all the bubbles out at the bleeder on the wheels, then the brakes are fully bled. You may need to adjust the shoes, or check your wheel cylinders. They may not be properly spreading the brake shoes.
For adjustment on the rear brakes, (I'm assuming you have the adjusting bolts with inner gears for HD 1 tons) you are supposed to tighten the bolts until the drum is unable to spin by hand. Then back it off 1/3 turn. This should give the proper clearance and feel for the rear brakes. For the front drums, with the brake adjuster bar (reach-in-style,) you back off 3 to 4 clicks as Achipmunk mentioned.
Good Luck! And definitely keep us posted.
