I finally found the source of my obnoxious ticking that I thought may have been a lifter. I went to remove my original cam to put in the new XP only to find out that the second bearing has come out and been mangled. I'm going to see what I can do to remove the camshaft since I can't get it back into the block all of the way either. I'm wondering if it's possible for me to install a new bearing with the engine still in the car. Or, should I pull it and do it that way?