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Old 08-15-2009, 04:26 PM
litdoc litdoc is offline
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?? air/fuel mixture

Hi Tom, for best economy and smog test AFR of 14.7 is best but again you have to be careful as this will be very hot burning. I usually back off to 14.5 for everyday driving. When I want max economy I will lean it out to 14.7 but keep an eye on the AFR meter or exhaust gas temp sensors if the car has them.

Last edited by litdoc; 08-15-2009 at 04:41 PM.
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