[greensc]

Thanks Wil,

I'll drain the oil and start again. I started with 8qts, then 10qts, then I goofed and put 12qts in. (No wonder I keep finding oil in my airbox! I'm such an idiot.) The noise happened even at 8 qts.

The chain tensioner upgrade was already on the car. I just replaced leaking flexible oil lines.

This noise is really loud! It sounds like a squealing belt, but it's not coming from the belt. I don't think it changes pitch with rpm change. The normal engine noise just drowns it out.

I started it up very briefly again this morning. The noise was still there, but then after a few seconds it disappeared for 10 seconds, and then reappeared again.

The rear of the car is still up on jack stands... but I wouldn't think that could cause any trouble.

The only other thing that I fixed was the right intake valve cover had no gasket (from the last valve adjustment done by a dealer who shall remain nameless at this time). It had been run for 1 1/2 years that way.

Could re-torquing the loose head stud nut on the #6 cylinder with the broken head have moved something that is now scraping.
Thanks for any suggestions, or criticisms!