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Old 12-31-2010, 01:13 PM
Bird76Mojo Bird76Mojo is offline
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Join Date: Jun 2009
Posts: 635
Default Re: Indexing spark plugs

Quote:
Originally Posted by pooleo View Post
so you could theoretically use the +4 plugs to eleminate any need to make the spark fire a certain way....?

Perhaps this is why the +4's are claimed to be more effecient/powerful, it basically automaticly index's your plugs....?

Not true because the spark is gonna jump to whichever electrode it wants to. Whichever is the path of least resistance.


Indexing the plugs wouldn't do anything to our trucks performance wise. As a previous poster explained, only racers do it to squeeze every last little bit of power out of a built engine.


GB
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2001 Edge Regular cab, auto 4.0L 4x4 4.10LS 8.8

1987 standard cab w/92 5.0/T5Z 31 spline 8.8 w/Torsen

1989 Regular cab longbed, manual 2.9 4x4 - Parts BroncoII's x 3
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