Just anti-seize on those bolts when they went in, jaluhn83. Doesn't smell like fuel, actually. Must have had oil pooled up in there somehow, though my other head didn't do this.
I guess what's odd is that it affected all of the boltholes?
There is no pass for oil to reach this bolt thru the head. This is what you applied to the threads when these bolts were installed. Looking at the head I see what looks like the exhaust valve guide seals to have come loose from the valve spring top. Hopefully you realize those seals clip into the top spring retainer and not install on the guide in the head like the intakes do.
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