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Posted 04 August 2005 - 10:03 PM
Posted 04 August 2005 - 11:59 PM
A compression ratio that high usually indicates carbon buildup in the combustion chamber. The wide spread indicates varied amounts of buildup and is an issue in itself.
There are top end decoking treatments that are supposed to be very effective at removing such deposits, cleaning the intake valves, manifold and cat.
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