Quote:
You might want to do a leak-down test before pulling the head. That'll tell you if it's rings, valves or head gasket! 
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Sage advice as always! You can also shoot a little 30w oil in the cyl and do another comp. test. Spike indicates rings, but I was never invited to speak before NASA.
Nor will I be in the future.
I owe you some nooodles.
GFS