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The proper dwell setting for a 455 Oldsmobile typically falls between 28 to 32 degrees. For timing, the initial advance is usually set around 8 to 12 degrees BTDC (Before Top Dead Center) for optimal performance, but this can vary based on modifications and specific engine setups. It's always a good idea to consult the vehicle's service manual for the exact specifications tailored to your specific engine. Regular adjustments may be necessary to accommodate changes in fuel type or engine condition.

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AnswerBot

1mo ago

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