adjusting the idle on the zc

so i hear my friends civic with the same motor suckin in so much air, but mine not as much. but if i adjust the brass screw on top of the throttle body i can get it to suck more air in like his. so is this a better set up or is better to have that screw almost closing off that port or open it up more? i got it open abit now but can be more open, or should it be more closed. also should i disconnect the plug to it at any time to reset it ?

That screw justs adjusts the idle, no big improvement unless you have a shitty idle.