Fuel pump. Volume?

I've had the car, 65 Classic, for about a month now. I got it in an "idle but not drive" state. 

The first issue I encountered was a carb with missing pieces. I replaced the carb with a "known good" unit off eBay and the car started right up and I was able to get around the block. It would drive about 5 minutes and then kind of sputter to a stop. 2-3 minutes later it would start back up and go again for about 5 minutes. 

For giggles I pulled the bowl on the fuel pump. It was gross, but much cleaner than I expected. I cleaned the bowl and screen and threw it all back together.

This led me to the ignition system, thinking heat soak, as I could see fuel when actuating the throttle and looking in the carb. Seemed like the same issue I once had with an old VW. The coil would heat up and essentially shut down.

Coil checked out at 6ohms...so I replaced the coil, cap, rotor, plugs, wires and put a pertronix ignition in.

Car wouldn't start. I decided maybe when cleaning the fuel pump bowl I "unprimed" the system and gave her a shot of starting fluid. The car started right up and ran smooth until the starting fluid had run out. 

Next I popped the fuel line off the carb and had the wife crank. The output of the fuel pump was less than I would expect. 

It was kind of a "splirt." A half squirt half spray type deal. 

So...does anyone know what kind of volume I should be getting from the pump while cranking?

Any other thoughts?

This car is driving me mad.

The car has 65k miles so yes, it has done some sitting.

Unfortunately the ONLY rust on the car is where the gas tank straps bolt to the trunk floor...or I'd have already dropped the tank. I need to fab some 2x3" patch panels. 

I am hoping I don't have to replace the tank.

I recalled a box in the trunk of the car when I got it and remember it having a fuel pump in it. Dug it out and found the original Carter and a typed letter from one of the bigger AMC parts houses (starts with a B, can't remember.) It was the core return paper work. So assuming a new pump, I took the pump off the car and pulled the bowl again only to find I hadn't seated the sealing gasket properly and was sucking more air than fuel.

Fixed it, put the pump back on and Bam...she runs great.

the rubber diaphragms in that old pump are... old. and new gasoline eats old rubber, which needs littel help to crack and leak.

see if you smell gasoline in the oil. that's the usual symptom of a bad fuel pump.

i've never had to measure volume of a pump; usually a hose into a jar/bottle and a few cranks, you get a half cup in 10 seconds of cranking, whatever the volume is, you can eyeball that it will fill the carb in short order!

sorry you're having all this grief. there's a lot of little things to creep up and annoy you.

did the tank boil and reseal and new float and sock and rebuild card and transmission module new coil pertrinics is good i checked with tack and light.