I have a 1975 cb 750 SS and have bent one of the brass tubes the carb jet screws into. I could not bend it straight and the needle kept hanging up in it, so I bored it out. The question is : since the 120 jet orifice controls the intake amount and the sleeve the needle drops into controls the metering out will the boring affect that carb and be a problem? If you guys think so does anyone have one I may buy because I have been unable to find one. Thoughts, comments, ideas, advice appreciated.