A/F Ratio @ idle

[Mad_Trbo]

Those of you out there using the FAST XFI or who have A/F meter. What are running these cars @ idle A/F ratio wise?

 

[norbs]

It all depends on the cam in the engine. You should set in gear as high as you can before it stalls or surges. On my car that is about 13.8 a/f in gear out of gear it will be richer of course, depending on the o2 correction you all the ecm to pull out fuel.