Please explain Idle adjustment screws
I have a 1982 model 4.2L with a stock Carter 2bbl BBD Carburetor. One of the guys at work offered to see if they can fix my rich idle by adjusting the idle mixture screws on the front of my carb. When I started reading for instructions I found they were contradictory. Some say that turning the idle screws in (clockwise) makes them leaner while others say that backing them out (counterclockwise) is what makes them leaner. Can somebody explain how they really work and the easiest way to set them close?