Thread: Intake, Header, HFC, CBE = Too Lean?
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Old 03-26-2010, 06:36 PM   #123 (permalink)
G37Sam
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The Stoichiometric (ideal) A/F Ratio is around 14.6, that's the A/F ratio you want to run at idle and little loads (cruising etc..)

It is only that you go rich (12-13) A/F @ WOT because it helps keep the combustion chamber temperatures down which helps in avoiding knock and advancing timing safely
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