[Dr J]

Originally Posted by Funracer

Anyone else with stock lambda and CIS have 15.7 AFR at idle?

Thanks

I have an SC converted to EFI so I have played a lot with AFR in all conditions. I can tell you that these cars will not be happy idling that lean (15.7). I have mine set at 14 and it idles well at 13.6ish.

While Andrew is correct that a stoichiometric mixture of gas with 10% ethanol has a different actual AFR value, that will be irrelevant since you can just read the AFR as if you had 100% gas with 14.7 being stoich.