I did something to my throttle body, and on the AFC it used to give me a vacuum of ~548 - 560 mmHg at idle. Now, since the mod its showing me a vacuum of ~560 - 570 mmHg at idle.


Exactly what do these numbers mean, and what kind of fuel correction would be alright for this extra vacuum i'm seeing? Right now, i just added +1% from 4000rpms on up.