Ask five guys and you will get five answers on the brake bleeding. I like to start at the right rear, then left rear, right front, and finally left front..
Your drums should not drag with the adjusters all the way in. Remember on those Hucks that you need to turn the adjusting wheel clockwise to adjust the shoes outward. That is clockwise as you face the end of the wheel cylinder you are working on. You may want to pull the drums that are dragging and check to be sure the adjuster is turned all the way in. Also be sure that the shoes are seated on the pins and that the brake springs are installed properly to return the shoes away from the drums..
Another source of drag for the front drums could be wheel bearings that are too tight..In the rear check to be sure your emergency brake linkage is hooked up properly.
As for your choke, there are a few different carbs that would fit your motor. In general, there should be a round strap with a screw that holds the braided section of the choke cable in place. The wire that comes out of the braided section connects directly to the choke plate to pivot it to the open or closed position...
Keep at it, it sounds like you are making progress...
