Thread: quick 3X plug question
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Old 01-11-2018, 10:31 AM   #4
burner31
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Join Date: Dec 2014
Location: Shawnee, Ok
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Default Re: quick 3X plug question
So...

1: Concave up, flat down
or
2. Concave down, flat up

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Keith
Shawnee OK
'31 SW 160-B
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