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Thanks all- This is super helpful! Sam- what function does that inertia switch perform?

Thanks Guys. Sam, I spent a bunch of time in the archives before registering, and I found a couple of posts about electric pumps, but not exactly the questions I was asking. The search function is... lacking (or maybe I just don't understand how this one works, but the Boolean logic I was using wasn't helping") With regards to the old pump, I have no problem removing the mechanical fuel pump- would you suggest leaving it in place and bypassing it, or removing it and putting a blank off plate in place? I'm unclear from your earlier response (i offered two options, so I'm not clear on which you did). Did you tie into the ignition at the ignition switch, or elsewhere in the harness? Allbizz49- if it were a question of a few seconds of extra cranking, I wouldn't worry about it. When the car hasn't been started in weeks (or months, during the winter) it takes a *long* time for fuel to get to the carb. If it's only been a day or two, the car starts right up.

Hi all- I've owned my 51 Plymouth for about 23 years. I rebuilt the motor when I first acquired it, but it's otherwise original. This is the year it's finally getting restored. It only gets driven a handful of times a year. and that leads to lots of cranking when trying to start it, as the fuel makes its way up from the tank. I currently have an original mechanical pump on the car, and I'd like to give it a little bit of help, by adding an electric pump. So, that leads me to a couple of questions... - Do I leave the original pump in place, and if so, do I place the electric pump before or after the mechanical pump? - Should I remove the original pump and fashion some sort of blank off plate or use that as a mounting point for an electric pump? - Is there somewhere I can tie into an electrical circuit so the pump runs automatically (the ignition perhaps?) or should I install a switch somewhere to turn the electric pump on and off? Unless it's a safety issue, I'd prefer to figure out a way for the pump to turn on and off automatically, so I don't need to remember to do it manually. - any particular 6v pump that is recommended by the community? thanks in advance!