If you look at ANY new head they are all perfect ports. They get rid of the lumps and make them as efficient as possible. The Fuel injection and timing do their thing. My goal is to make the smaller port extremely efficient, let the carb, air-raid and performer manifold keep the air moving and the fuel atomized at lower rpm. Thats the reason for the smaller port. These things will keep the fuel moving fast and efficient. I'm thinking.