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  1. 06-10-2021, 12:01 AM #1
    Mike_83
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    200 ficht 1999 5005440 or 5001036 plugs?

    Would be better with 7712 plug? And cooler?
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  2. ChampioNman
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    #2 06-10-2021, 06:49 AM
    Did you check the plug chart in the stickies above? That is the latest and greatest.
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  3. Mike_83
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    #3 06-10-2021, 10:19 AM
    Sorry! I meant thermostat. Which better with 7712 spark plug.
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    #4 06-10-2021, 01:16 PM
    7712 shouldn't be in a 90* FICHT they are for the 60* motors.

    By changing the T stats to 5005440 you can run the optional QC10WEP iridium plug. Which will give you better all around performance and improved plug longevity.
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  5. Mike_83
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    #5 06-15-2021, 02:40 AM
    Thanks!
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