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Should I change the spark plug gap and heat rating for a 1600 Ford Kent motor when the Compression Ratio is made higher from 9.0 to 10.4?
Wiki User
∙ 16y ago
When you modified the engine to increase the compression ratio you changed the overall operating characteristics of the engine. You may need to change your spark timing advance curve, fuel metering, and possibly your cam profile and other things to compensate. You may also need to run higher octane fuel as well. That aside, spark plugs one or two ranges colder would probably be a good idea.
Wiki User
∙ 16y ago
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