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Pontiac of the Month

Keane165's 1970 LeMans

2022 June
of the Month

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389 spark plugs


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hi guys, where do i find the info on what spark plugs to run in my¬† 1964¬† 389 4 barrel powered Pontiac¬†ūüôĄ

AND... what brand works best... i personally have had a good run out of ngk and a really bad run out of champion !!:cheers:Xūüė°

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16 hours ago, 64 kiwi boni said:

hi guys, where do i find the info on what spark plugs to run in my¬† 1964¬† 389 4 barrel powered Pontiac¬†ūüôĄ

AND... what brand works best... i personally have had a good run out of ngk and a really bad run out of champion !!:cheers:Xūüė°

AC Delco runs best in my 421.  Champion.....not so much.  NKG???? Fine for my Jap dirt bikes, snowmobiles, never ran one in a car. Champion seems to run best in my small engines. Go figure.   Very interested in E3 plugs.  Believe they are made in FLA.  Have heard great things about them but they are pricey.

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