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Old 02-08-2007, 12:23 PM   #10
RACINJASON22
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Join Date: Jan 2007
Location: CENTRAL,PA
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Re: Spark plug gap for a '75 350 please...

Quote:
you will cook a stock hei if you run a gap bigger than .045. the coil and module cant handle it. wider gap means more electricity to jump the gap.
This is true to a point, which is the case with most stock replacement plugs. But many of todays performance specific plugs are being built with different resistance properties as is the case with many wire manufactuers also, So inturn you can run wider gaps for better combustion and gas milage at no risk to our older ignition systems. You do need to do some homework to make sure where you are at in this scenario. Technology is a wonderful thing sometimes and I think this is one of them.
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