Product Description
The Autolite 3910X spark plug is a surface gap plug that requires no gap settings. A simple plug and play part that is a beneficial upgrade to the ignition system on your 212cc predator, BSP, or any other clone engine.
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Autolite 3910X Spark...
Autolite 3910X Spark Plug
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Radical
Sparks good
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I can use this for a hemi predator 212???
I can use this for a hemi predator 212???
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Spark...
Haven’t got it yet
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Good
Good
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everything works great and came...
everything works great and came fast
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Smooth
Chinese plug was fouling out. This fixed the problem with extra gusto!
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Works...
Works great
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Predator 212 hemi
Found this plug while searching for a stage 1 kit for my predator 212 hemi, the plug itself runs a lot smoother and makes it easier to pull start, i run my predator 212 in 30° weather and it always starts first pull with this plug as with the stock plug it would take 3-4 pulls while having to play with the throttle.
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Autolite 3910x plug
Been using these plugs for awhile. Great plugs