how to set a carburetor

it running to rich, how to set the gas mixture on a 1986 c-10, i stop by a auto zone and he told me its two screws to set.

yeah on the front of the carb turn it in till it almost dies then back it out a 1/4. If you want to get the most out of it hook a vac gauge up to the carb has to be steady vac and when you get the most inches is where you want it

i dont see the srews on the carburetor is it on the side or top

should be up front have to take the filter to see them I can do my idle with it on