Electric or Mechanical Fuel Pump Decision.

I have installed a electric pump in my '64 classic as parts are hard to come by here in Australia. I have also adapted electric wipers using a mitsubishi wiper motor and spare fan switch I had in my parts box.
You need to fit a inline filter at the engine for ease of servicing and make sure the pressure is not too high or you will give the needle and seat a hard time. I cannot notice the pump running once the engine starts with dual stainless exhaust. I have also fitted a lpg lockoff controller, i think they call it propane is the US? which basically primes the fuel then looks for a pulse from the coil to recognise that the engine is running before the pump keeps going, it may not be necessary but I thought it was a good idea in case of a broken fuel line etc.

The old style electric pumps were "pulse" pumps that made a rather loud sound. Basically it was a solenoid vibrating and flexing a diaphragm very fast. The newer turbine style pumps don't make as much noise, but make sure you get one designed for a carb.

The pump should be as close to the tank under the car as possible, and as low as possible. Electric pumps aren't designed to pull much, they mainly push. You will also need a fuel pressure regulator with an electric pump, and make sure the pump is designed for a carburetor (I know, I mentioned that already!). You might need a return line, but I doubt it.

A stock mechanical pump will easily keep up with the demands of the engine. It might start to starve during a 140 mph run, if you get it up that fast and keep it there for 10-15 minutes without killing someone or getting stopped. I dobt the pump would be a problem even then -- the more rpm the engine turns the more fuel it pumps. So you should be good with a stock replacement pump. Electric isn't normally more reliable. It might be if you can't get a good rebuilt replacement. With the age of these cars that could be a problem, but I'd try a stock replacement first.

There probably are quieter pumps out now, I just realized My pump is 20 years old, lol on the bright side it has lasted 20 years.

  If you already have electric wipers, good.   Because if they were vacuum wipers,  you'd need the vacuum pump on the stock fuel pump.  If you've got a hesitation problem,  that's probably nothing to do with the fuel pump.

My 770 does have electric wipers, but why would that would matter in regards to switching the fuel pump? I was under the impression that one advantage in an electric pump would be to resolve fuel pressure problems common in older cars, which would resolve hesitation when stepping on it.