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br1984 05-10-2009 06:02 AM

spark plugs
 
whats the best plugs to run with gas 406 sbc alum heads has autolight 3910s in it now

CamBirdRacing 05-11-2009 03:07 AM

I have always used a Jap plug. NGK, Nippondenso. Seem to last forever. After selling auto parts for 10 years, never liked an american plug. I even use Jap plugs in my 94 v-6 Firebird.

br1984 05-11-2009 06:48 PM

spark plugs
 
what would be a good number in ngk like to have one to work with nos

CamBirdRacing 05-12-2009 03:19 AM

All throttle, no bottle. couldnt'. answer that one.

TS1955 05-12-2009 03:25 AM

Just remember, in an NGK plug the lower the number on the plug the hotter it is!

TS1955


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