oooooooops...To clarify,I binned the adjustable Needle only..NOT the whole carby..What ya think im crazy throwing out a brass nut carby!!! lmao...Ok so I found the Needle Ty,Its brass with a plastic adjustable disc,sits between the slide and the top of the main jet and has a small notch in it to allow it to run in unison with the slider along the slide locating screws...Sound like the one????The other difference i noted was the use of larger slide screws and a smaller brass bowl nut,without taking measurements thats all I can see is different:)