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#3372585 - 05/15/14 03:03 PM Everything You Want to Know About Spark Plugs
friendly_jacek Offline

Registered: 05/04/03
Posts: 5206
Loc: southeast US
Old but very comprehensive info. Emphasis on racing rather than street:

#3372807 - 05/15/14 08:31 PM Re: Everything You Want to Know About Spark Plugs [Re: friendly_jacek]
expat Offline

Registered: 05/12/09
Posts: 3795
Loc: Canada
Could somebody forward this to the Ford Motor company