To adjust, remove wheel, then remove the drum. Use a water based solvent to spray off the dust, making sure not to breathe in any of it (some of the shoes are still asbestos based). Use a long flat bladed screwdriver and lift up on the thin metal bar that sits on top of the little gear. This is the audjuster gear and lock. Use another flat bladed screwdriver and move the gear to push the shoes outward. Keep checking how the drum fits over, and when you have adjusted it to the point where the drum fits snugly over the shoes, it is good.
My turbo lag is your courtesy head start.