Thread: Donny Petersen says new HD'S are running rich!
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Old 07-21-2009, 08:12 PM
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geargrinder geargrinder is offline
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Join Date: Dec 2006
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Is it possible Donny is talking WOT only. At 'wide open throttle', manufacturers always bias the A/F ratio safely too rich, do to production variances which causes different engines to run different ratios. Better to error on the rich side.
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