Hey there!
Just remember a couple of things from a man who knows.
There may be more than one fuel line filter. Generally on in the fuelline before the pump, and one in the side of the carb/fuel control.
Also, back in the day, when someone (a bully of Fonzy) messed with you, a baggie in the gas tank was in order. there may be some object in the tank that periodically floats over the outlet hole and cuts off the fuel flow, rust for example.
Stalling is a sign of bad fuel fflow, not bad electrical. Hesitation, iratic idle, yes, but not stalling.
When the carb(a generic term) internal resivoir empties, and fuel pressure does not keep it filled, it stalls, the rpms drop and the engine starves for fuel. When the car relaxes the demand fo fuel, the poor fuel feed gets to catch up.
I speak from experience here, because i sold a 69' with the same problem. The guy who bought it called me and told me what the problem was, as I had replaced every electrical component, including the coil.