Yes, you could use an electric fuel pump in the tank, but the 2.8l tank assembly isn't really setup for that
Couple of things you need to know
Up thru 1988 Ford used a fuel gauge system that used 73 ohms EMPTY and 10 ohms FULL
In 1989 and up the senders and gauges were switched to 16 ohms EMPTY and 158 ohms FULL
So opposite
Need to stick to senders in the tank with 73/10 for your gauge to still work
Low pressure pumps use a diaphragm setup like your mechanical pump, it can suck the chrome off a trailer hitch, lol so it can suck the gas from the bottom of the gas tank over the top of the tank, along the frame and then up to carb, but they can only build about 10psi pressure, at the carb
High pressure pumps are centrifugal setups, they couldn't suck the air out of a fully inflated tire, lol, well not quite that bad, but they have 0 suction, so they have to be immersed in the gasoline(bottom of the tank) or have some pressure pushing gas into them, i.e. low pressure pump and high pressure pump setup
But they do run at 80+ PSI pressure
And that's another thing, high pressure pumps have no internal regulator, they are either on or off, so 80+psi or 0 psi
You will also need an FPR(fuel pressure regulator) to limit the pressure to the CFI
you chose, it will have an optimal fuel pressure it needs to calculate how much fuel to add, then you get an FPR thats set for that pressure
Its good to have a Fuel Return line on an FPR because it will make the high pressure pump last longer
If you want 30psi pressure at the CFI use a 30psi FPR and then the other 50psi is sent back to the gas tank on the return line, pump is happy and CFI is happy...............so you are happy
The pressure requirement is not "standard" each CFI system will list what pressure it was tuned for
Knowing all this you can pull your fuel tank assembly to see what you will need, also to clean out the tank
You could use an 1985-1988 assembly that is already set up for low pressure pump so has the wires and return port, then use a high pressure pump instead
And then an FPR in the frame rail, with short Return back to top of tank
You will also need to add inertia switch with 12volt key on wire to power the pump