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will check Sunday . also plug check.  already  rechecked crank.cam timing (OK) and valve gaps ( think ok but might recheck) compression is around 165 psi so cant complain. seems to me PCV valve might be  part of issue as smoke showing blowing up from rocker cover to air filter housing. will ask be checking oil/coolant levels and for bubbles in coolant on Sunday.  be just my luck head gasket isn't up to job and has blown again ;(  did check torques ( twice) and bolted in correct  sequence though now wondering if head /block is not flat enough? skimming is possible but simply not worth time and effort. major  work already done and a second effort cant be justified by wife.