I don't get it. #2 and #4 look like they were just installed and have never seen spark. If you had fuel and spark, compression or not, the bad cylinders would fire and would be sooty and wet fouled, not squeeky clean. You never had fire in either of those holes.
Was your oil also full of gasoline? With no fire, fuel would leak past the rings into the crankcase in addition to blowing out the exhaust in a mist and drip from the tailpipes..
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Triple Black 1971 GTO
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