I am currently in the process of rebuilding my 82 323i, and am looking for new injectors. Bosch part number, 0437502 006. I am looking to get a little more out of the engine as well, and wondering if a higher flow fuel injector is available, and if it will help, or will just richening the mixture provide higher fuel flow. If you can help me locate these injectors drop a line. If you have expereince with the rebuild of this model, and can enlighten me on some hot spots let me know.