Hmmm...if I wasn't totally confused before, now perhaps I surely am! Wart: You seem to be very knowledgeable in this matter. I appreciate the time you have put into providing an in-depth explanation about this, for those here that do better understand automotive electrical theory and systems in general, along with those (like me) that have relativly little expertise in the area. Thanks too, to everyone else that provided input. Without it, this topic might never have got to this informative point. Wart would have continued asking questions, and I'd have simply wondered why, while trying to pick his brain for more info. Thankfully too, it has mostly stayed on topic, while Wart has been able to show his better side, even to those that might think he didn't have one. Clearly, the issue of voltage (as Wart 'mentioned' earlier in this thread) is the main reason the carb manufacturers advise against using power from the alt or the coil as a source...in addition to using another source that might be "hot" even when the engine is not running. I'm glad that you mentioned that too (about voltage), because I'm sure I wasn't the only one here that didn't know, or wouldn't have given it a second thought, had you not pointed it out. It would seem that because of so many different ways the auto manufacturers might run wiring circuts on different various models, that the carb manufacturer will not commit to a "recommended source" for power for all applications, but rather make a general statement to the effect that the source must be from an "ignition key activated 12V source." However, if Cobraman and Cobraii351 are correct, then it would seem that this is exactly what Ford used for a power source with the electric chokes for II's, and possibly other cars of the era as well. Would that mean, that at least in this instance (due to how II alternators are wired from the factory) that using that wite wire should be acceptable even with an afternmarket piece? Would this be a source that would also keep voltage to an acceptable level as Corbaii351 stated? Also, how do I tell if the alternator is a Delta or a Wye anyway? BTW...Yesterday I attended the Syracuse Street Rod Nationals, spending some of my time viewing how others had hooked their electric chokes up. Needless to say, I don't think I saw two cars that did it the same way...and I doubt if the majority knew the (possible) errors and consequences of their ways. I saw some pretty scary fuel line arrangements too, that could easily make matters worse, particularily if something went wrong with a nearby "hot" wire. So, even though this whole post is about a somewhat trivial issue of an electric choke, it seems to be a fairly worthwhile topic of discusson after all, (judging by the replies) ...and especially when one considers its relevence to having ignition and fuel systems working safely together in general.