retorque heads to solve issue?

Don’t want to muddy this anymore than it already is, it’s oil and grit? The only oil passage that the head gasket seals is 1/3 of the way back on the head. So you think oil is seeping out of the combustion chamber? I re-torque after it sits 24 hours. Always get a bit more on the nut. Much less with cometic gaskets. I don’t think there is any downside to re-torquing them one at a time in sequence. I think this is a non-issue performance wise. If it is very slight combustion gas seepage it will probably stop after carbon fills in whatever passage it is seeping through. Run it. There are much more probable sources for the oil. China wall,power steering? Belt dust. Front cover gasket. Front seal weeping and getting slung all over.