Back up the head bolts about 1/2 turn, and retorque them, one at a time after warming the engine up to operating temperature. It can't hurt, and it just might fix a seep compression leak. Did you use any type of thread lubricant or anti-seize compound when the head was installed? Dry threads tend to under-torque fasteners from thread friction.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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