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Re: Vortec heads, HEI and spark plug gap
I never pay much attention to what plugs come gapped at I just gap them for my application. With a plug fitting more than one application they all may need something different. Then if you have made changes to the factory configuration like carb, intake, cam, or ignition you may need to adjust from the factory spec a bit to fine tune what works.
Jimmy
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60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
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