Join Date: Jul 2010
Location: The Mojave Desert - Palmdale, Ca. U.S.A.
Keith, I really don't think it was a used head-bolt issue in your case.
I have seen this issue before with felt-pro. I for one am NOT impressed at all with their gaskets, and will NOT use them.
Just don't forget to do a re-torque of the headbolts when you get about 500 miles on the engine.