Hi Pastor Matt. Please try an adjustment of between 1/2 turn to 1 turn and set your idle speed to something like 475rpm. Anything over that will cause you to run too rich at idle and waste gas. Also, Jerry is 100% correct. The vacuum leak caused by warped body castings will cause the power piston to fail and that means your Rochester will run very rich constantly. A few years ago I wrote quite a lot about the problems of the Rochesters and a way "everyman" can straighten these using his gas bbq grill.
The Carter YF is an excellent carburetor, by the way. Completely different than the Rochester.
Please also make certain the power piston is freed up in your carburetor. I've seen these which were "professionally rebuilt" which had power pistons that were stuck in their bores and they always stick in the down position.
