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Posted by chriscase on Friday, June 12, 2009 at 09:54:08 :
In Reply to: Re: vaughn is correct again posted by MIKE STONE COTM JEROME,IDAHO on Friday, June 12, 2009 at 09:12:08 :
I know you can still turn plugs black from too rich, but I haven't seen a cocoa colored plug since they unleaded us.
If the plugs are so hot that they are melting, the pinging ought to be extreme. Maybe the owners of these trucks are all old men with high pitch hearing loss? Every time I loaned my brother my F-250 with 428CJ, it came back detonated- sucked vale or hole in piston. He was a shooter, worked as a ramp rat at the airport for 22 years.
The shops around here with REAL tune up men used Autolites.
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