At WOT, If the carb is really to big for the motor it will run lean. The engine doesn’t move enough air through the carb to create enough signal through the venturi. At WOT velocity of the air is what pulls the fuel. There is no manifold vacuum. To big not enough velocity.
So how do I figure this out? Is it also based on venturi size. Doing this one on my own don't really have the help that I used to for making selections
