We have this Cat which is running rich. Can't lean it out.
Serial AT13E-50002.
It has the O2 sensor which we changed and did all the tune up etc. Its Impco with a Model 60 mixer. Engine getting a bit tired but runs well. Might have slightly lower vacuum etc than required to run the system.
We have heard there is kit available to change it from drive by wire to conventional throttle and cable and mixer. Anyone have any idea of who sells it and what the part # is.