Here is what im working with. Idle tube: .038 Idle down channel: .065 Upper idle air bleed: .065 Lower " " " : .071 Idle bypass air: .092 Mixture screw holes: .084 Main air bleed in main body: .058 Comparing to the nums in ur book I look on the small side of all the holes. Turning the mixture screws in all the way did not stumble motor and barely lowed rpm. 3 turns to 7 turns out no differance. Only thing is it was smooth, and on the lean side. Rpm would increase with a touch of carb clean at the primaries.