Need to to be able to adjust the carburetors on your fixed needle Zenith Stromberg 175CDSE? We have found the best way to do this and it will give you more adjustability than the adjustable needed. This adjustable jet presses into the Zenith Stromberg 175CDSE body and no machining will be required. Now you will be able to fine tune your Zenith Stromberg 175CDSE carburetor for optimum performance.