Have you ever compared a CARB approved calibration to stock? What a joke!

CARB is a pretty lengthy process as well, basically a Detroit EFI engineer can do this and I've seen the process... It's been well worth the effort and cost when Howell did this long ago to make TBI work on Jeep I6 4.0L engines and they have sold a ,lot of systems. AFI has also done the same process but went for a more specific market of all the Airport equiptment, most all of them use six cylinder fords and for emmissions and fuel savings it was a big hit around the country.