How tall should a throttle body spacer be?

[Captkaos]

Dyno is $25.   If we are tuning cars we can put whatever we want on there for nothing.  I dyno'd my Vette for nothing.

[eventhorizon66]

Cool.

[Skunksmash]

Ok so now on to my next question. If i do all the little tricks to maximize airflow, will the computer say "Oh hey look, there's more air. Now i am going to spray more fuel so that the optimum air/fuel ratio is achieved." You know how some computers sort of gauge the amount of air coming in and adjust the fuel accordingly. Cause my main goal is to maximize fuel efficiency, so i wouldn't want it to start spraying more. Probly a dumb question but oh well.