looking to get some info on carb size, the motor i am building is a 4mil long rod with k&t drag ported cylinders, vforce 2's, cool head with 21cc domes (pump gas), +4 timing, shearer in frame pipes, would stock carbs work for this setup or would i be better off going with bigger carbs and ifso what size, what kind of power should i make with stock carbs and the what kind of power with bigger carbs,,,,,,,,,,,thanks in advance