Got'em out! I taped them with a regular hammer rythmicly for a minute or so, squirted some more PB Blaster on them, then used my vise-grips and got the darn thing out. My new vise-grips have an Allen wrench socket on the back so I could tighten it even more and that gave me the necessary grip to finally turn the thing. That plug sure was mutilated. Thanks for all the help/suggestions!
