You might be working on two problems.

The stalling sounds like water in the tank. It happens when the seasons change and we have cold weather and then hot and then back to cold. A quick way to figure this out is to dump two quarts to rubbing alcohol into the tank. The alcohol will bind with the water and when the alcohol burns in your cylinder it will drag the molecules of H2O with it. You might notice a slight loss of overall power but the stalling will stop. That is, if the problem is water in the gas.

The noise sounds like the fuel pump and it is pumping against a blocked line and relieving back to the tank. The pressure is much higher when this takes place so the whole thing is working harder than ever. Reach up under there and feel the pump when it is doing this. It should not only be buzzing but hot to the touch. (Well, maybe warmer than seems normal since higher pressure is dissipated as heat.)

You may have a stuck fuel pump relay. Find the relay and then, when it starts doing this, pull the plug off the relay. It should be in the engine compartment and easy to access. You might pull the plug off before testing this just to make sure the plug will come off with a slight tug. After all these years those electrical connections can be quite tight the first time you go to unplug one.

Of course you could also pull the positive wire from the fuel pump. I just think the relay would be easier to unplug.