I already posted the things I know about my 5-0 that I purchased, so I won't post them again, ha.  While my Fox is idling, I can hear a ticking/knocking sort of sound coming from the head.  It's right above cylinder #6.  STUPID question, but is there ANY chance this could just be because of the cylinder mis-firing at all?  I mean, it could be a rocker knocking, but I don't want to think that way just yet.