Thread: What spark plugs are you currently using?
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Old 11-10-2019, 10:20 PM   #16
The Master Cylinder
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Default Re: What spark plugs are you currently using?
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Originally Posted by supergnat View Post
The current 3X’s I’ve seen have dual grounds (I think that is what they are called). Is that an improvement/. Are they good for our Model A’s?
Interesting, I have not seen a dual ground 3X.
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