First off I apologize that this is a repeat post, however I can't seem to find the one I had been reading. I am going to hang drywall on concrete block walls in the basement. They have been sealed with some type of paint/sealer. I plan on using some size of furring strip (please suggest) by screwing to the block with tapcon screws by first gluing with construction adhesive then drilling my pilot holes through the furring strips then into the block. Is this OK. At first I was planning on just running the furring strips vertically with a slight gap between the poured concrete floor and the furring strip, however I have read somewhere that I should run a baseplate strip against the floor and the ceiling joists for the furring strips to attatch to. Is it necessary to run the top and bottom plates, or can I just hang the furring strips vertically. Also will I save time by using some type of gun (please suggest type) for attaching the furring strips to the block. Thank You for your time!