AFM calibration?

[Slava]

Do not make it!
A/F ratio will be wrong!

Slava.


>I know nobody would want to use an airflow meter
>as used in an L-jet setup nowadays, however I have
>an older car that has that restrictive setup and I'd like
>to adjust it for better flow. How can I know what is a good
>tension on the spring?  I know the looser, the better
>airflow, however I think this can bring me a few
>problems if it's too loose. I know this affect the
>fuel economy as the hp goes up (in combo with
>a free flowing air filter of course) but what other
>side effects are there?