Thread: Correct NGK Plugs for 550+Hp SB
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Old 08-23-2010, 08:40 AM
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wrogers55 wrogers55 is offline
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Location: Hideaway, Texas, TX
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Lesson learned. Couldn't find Autolite 3922s for the AFR 205 heads anywhere in town and I needed something quick. So everyone had and I put in 3924s.

Immediate low end ping. Initial ping on acceleration on freeway. Way to hot for this motor. Also, of all things, the temp gauge showed about 8 degrees C hotter than ever before, fan turned on in places that surprised me.

I just ordered the 3922s. Lesson learned. Hope this helps someone else.
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