Timing/Octane question - Power Hungry Performance Forum

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Timing/Octane question

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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.

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Tue, August 31st, 2010, 10:53 AM

Stu_486Fitter Stu_486Fitter is offline

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Timing/Octane question

I read in a previous post http://forum.gopowerhungry.com/2004-...-program.html? that if you are running an octane level other than the one specified for a tune you should retard/advance timing. Im kind of clear on it but just want to be sure. Im running 87t canned tune but always run 93 octane. BTW its a 06 5.4 if it makes a difference

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