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Old 09-15-2012   #4
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
Default Re: tuning questiion

Lee,

Have you pulled plugs and checked for specks in the porcelain? That would confirm detonation.
You may want to try a colder plug.

Last edited by XfireZ51; 09-15-2012 at 10:26 PM.
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