2 bbl carb

I'm putting a new 2 bbl carburetor on my 273 65 barracuda, it has 2 adjustment screws on the front I'm guessing one is air & one is fuel...any recommendations on where to start with my air and fuel screws... I'm like a first grader walking in to 12th grade when it comes to carbs. I know and understand very little about them.. any advice would be great...