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87 FC what spark plug setup should I use?

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Old 09-15-13, 04:45 PM
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87 FC what spark plug setup should I use?

So I am doing a tune up and ive heard that there are benefits to running 7s and 9s in your engine.

What are the benefits for running either 7s ,9s or both and as a lead or trailing spark?

Im learning the basics about rotaries right now.

Like what would best for what kind of situations. Info like that would be amazing!
Old 09-17-13, 09:14 AM
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7's and 9's for N/A
7's and 9's for stock TII ..OR all 9's if you start mucking with mods.
Old 09-17-13, 10:09 AM
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Should I run 7s as the trailing or leading plugs?
Old 09-17-13, 12:33 PM
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hotter plugs (lower number) for the lead. colder plugs for the trail.
Old 09-17-13, 12:45 PM
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OK thanks alot
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