Hi all A few days ago I upgraded the alternator on my 240Z to a 60amp Bosch model from motorsports (www.zcarparts.com). The kit somes with a cap for the wiring harness to replace where it connected to the voltage regulator that bolts onto the fender. A few interesting things came of this, and I am hoping to get some feedback from you folks. After the install, when I turned the ignition to the "on" setting, before starting the engine, I heard a rapid clicking sound coming from the right rear of the car which wasn't there before. I checked and it was the electric fuel pump making the noise. If I reinstall the older voltage regulator, the clicking goes away. I don't know if I can run this new alternator with the old regulator though, and would like feedback on that. I noticed that the adapter plug (that goes over the wiring harness when you eliminate the old voltage regulator) seems to have blown one of the links. it looks dark through the white plastic and the plastic near that looks marred. perhaps the adapter is faulty, or maybe it is intended for models that do not have the electric fuel pump? Part of what confuses me here is I thought that the 73 240Z only had a mechanical fuel pump, and that the electric fuel pump was added for the 260Z model. My production date is 6/73, so I wonder if they started doing that earlier. The electric fuel pump looks like a stock piece and looks like it is the original, as it is worn and rusted, and fuel seems to be leaking from the bottom. So one question is whether this is the stock setup for a June production 73 240Z, and whether I should replace the electric fuel pump or just eliminate it altogether. The fact that the wiring looks like it is original and pat of the harness and the pump looks stock leads me to believe it is the stock setup and should be replaced, but I am looking for confirmation.