if you mean the A/F mixture screws, gently seat them, then back them out 3 turns, start car and let warm up. while idling, screw in each 1/4 turn and check for idle speed drop, once a drop is detected backout each screw 1/8 turn. make sure you screw them in and out evenly
u mean screw them in as far as they go then back them out 3 turns, start the car turn them a 1/4 or untill idel drop then set them foward a 1/8 of a turn?