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GM HEI Ignition Swap - Spark Plug Gap

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Old 04-07-2022, 08:13 PM
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Exclamation GM HEI Ignition Swap - Spark Plug Gap
Anyone know what size gap I should run on my spark plugs after converting to the HEI Module/Coil?

Ive heard the spark is stronger, should I gap them a bit more?

Thank you,
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Old 04-07-2022, 09:08 PM
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In the interest of community building you should probably post pics.
Where'd you get the idea? That a 3V or 22R?
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Old 04-07-2022, 10:38 PM
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Ill keep that in mind! Sorry, its a 22r with weber carb.
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Old 04-08-2022, 11:22 AM
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Anyone know the spark plug gap with an HEI swap on a 22r?
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Old 04-08-2022, 01:49 PM
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A rule of thumb is .035” for a points ignition, .045” for an electronic ignition. That works fine.
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Old 04-08-2022, 03:43 PM
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Thank you sir.
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