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Cylinder Compression boost with STP or ...

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Talisman10743

Talisman10743

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...another oil additive ? Annual approaching, and #2 on my A-65-8 is always borderline in the mid-40s, even with fairly new rings (3 years ago). Engine runs great, plenty of power, no issues. Compression air bleeds through crank case (oil breather hose), NOT out the exhaust or carb.

Any help greatly appreciated.
 
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