Well after dropping the oil pan to check to see if there were any metal chunks there, nothing.
So my friend Tom(old gray haired shadetree mechanic) decided to forget the compression test and tear off the rear valve cover, as we both concurred that the noise was coming from there, to see what we could.
Yanked the cover and sure enough, we found the problem. Broke valve spring on the #6 intake.
Top part of the spring:
And of course the intake valve that fell:
The piston had a little bit of scoring, but from what Tom said(and Wren) it shouldn't be anything to lose sleep over.
Now to get it all back together!