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Old 08-30-2012, 01:44 PM
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Just my unproffessional 2 cents but 11-1 compression on a carbed car is on the edge even with 93 octane. Hard for me to tell if that is black from fuel or oil. Have you checked your air fuel ratio. Pop through the carb could be as simple as moisture under the cap. Hopefully it is not a valve sticking. Does it go away after warm up or maybe get worse. Have you opened it up and blown all the gunk out of it(carbon etc). Not driving is sometimes worse then driving every day.
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