AF meter how do i go about reading this. Options

[jmargush]

I borrowed a AF meter from a friend and was wondering what is the best process for reading and setting the mixture.

Can I take readings at idle and hold the throttle at 3k and take another reading or do i need to drive it with it under load?

based on readings which adjustment do I move first static or dynamic?

[jmill]

idle means nothing beyond emissions (and not much)

OR, wasted fuel and washing down cylinder walls. (That's why I do an idle adjustment.) You don't need to be running 9:1 at idle, do you? (IMG:style_emoticons/default/confused24.gif)

The big question is what jets are you checking with the AF meter, idles or mains? Lets face it, idle adjustment is 4 screws with the butterflies closed. You're not going to be washing down the cylinder walls at a stop light. What's more important in a street car is off idle when you're running on the progression ports (idle jets).

Just to throw another wrench in the works is that a smooth transition to the mains depends on idle jet size, vent size, ET tube selection and main jet size. You may have to compromise on your AFR in some throttle positions in order to obtain the best transition. The question you'll have to ask yourself is how good is good enough.