Originally Posted By dafixr
we would like to be at 12.5/12.75 AF


Your current AF "13.25/13.75 on O-2 sensors" is leaner than your target "12.5/12.75 AF" not richer.

Higher AF number = leaner
Lower AF number = richer

The nitrous engines I own and tune seem to like around a 12.8:1 AF ratio. Your results may vary.

Last edited by Plumb Wired; 10/08/15 12:16 PM.
RIP Monte Smith

aka: OutlawFish
'98 Bickel Dodge Dakota PST