i would like to run my air box open i know i need to rejet...but im not sure to what size i need to go i have a k&n filter if the makes a differance. also would i need to change my piolit jet and any other jet?adjust my needle valve? also when i do the oil block off i want to run 32:1 if i jet for the air box lid will i need to jet again for the premix? I:I