I have a ‘76 f100 with a 302 and was wanting to get away from the mechanical pump. What all do I need and how much pressure should be pumping to the carb? Where do I get power for it?

 

A Plan A, and a Plan B! Just kidding. Just a little bit of pre-planning and you should be good. Lots of people running electric these days.
But part of that Plan-A is to find a convenient spot back near the tank. Do you have single or dual tanks?
A fuel pump block-off plate will be handy. Depending on which engine, the Windsors need this one: https://www.wildhorses4x4.com/catego...lock+off+plate but the 335 Series (351M and the 400) need a different, tall one with bolts at the top and bottom.

Usually 3 to 5 psi max for a carburetor. Many will go to 7psi easily, but the carb isn't necessarily going to appreciate it.
If you check and it's got more than 7psi I would get a regulator. In fact, you might just plan for a regulator right up front.
What kind of carburetor do you have? Some carbs like Rochester Quardrajets are known to like 2-4 psi, but not many Fords are running around with one of those.

Several places, but not much back there to work with. Some 250's have a camper power plug on the driver's frame that power can be pulled from, but not sure if there is a switched power, or only full time power.
I like running them through a relay (like most factories do) to keep any additional load on the ignition switch to a minimum.
A relay under the hood with some 12 or 14 gauge wire back to the pump, ground the pump to the frame, connect the relay as specified (we can get into more detail later) and preferably run it all through a low-oil shutoff switch.

Easy as pie!!!
Probably lots of diagrams around. I'm not sure what the best way to connect it to an oil pressure switch is, but there are lots of folks hereabouts that know that kind of stuff.

Paul

 

You didn't say if it has the original carburetor, but the 1976 Ford Shop Manual, for the 302 engine, specifies 5.0 - 7.0 PSI static pressure (engine temperature normalized; idle speed). Minimum volume flow is 1 pint in 20 seconds. Too much pressure can be just as bad as too little and should be tailored to the carburetor.

 

In addition to everything above, be sure to buy a good quality pump and I recommend to buy a permanently mounted inline pressure gauge. If the truck ever doesn't start this will help you quickly diagnose.

I also recommend these two parts for the relays. I've used a bunch of these for different wiring projects. They're great quality and weather proof.

https://www.summitracing.com/parts/HLA-007794301

https://www.summitracing.com/parts/hla-h84709001

 

If you really think you need an electric pump, make sure it's done correctly. ; Electric Fuel Pump: How to Do It Right

 

I'd say generally it's worse, seems like a great way to start a really big fire.

 

I did this about a month ago on my truck. It has a 400 with a Holley 500 cfm 2 barrel. I’m getting consistent fuel delivery now.
I bought a Holley red label pump it’s rated at 5-7 psi so I didn’t have to run a regulator.
here is what you will need.
fuel pump
100 micron filter
fuel pump relay wiring harness
3/8 npt barb fittings
3/8 npt nipple
fuel line

links to what I used
https://www.summitracing.com/parts/nxo-00-01921-b/

https://www.summitracing.com/parts/hly-162-551/

https://www.summitracing.com/parts/hly-12-801-1/


https://www.summitracing.com/parts/prf-50102/