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Re: Oil blow by
If that converter is the OEM pancake converter, those have a lot of back pressure even when new. Worse when they get old and carbon fouled after the magic pellets mostly quit working.
Another thing to check is the exhaust riser valve. Those can get stuck and force too much exhaust through the intake crossover. This both increases back pressure and over heats the carb, often causing a too rich condition. This can also hasten the death of the converter as it has too much unburnt fuel to deal with.
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