Full tank of gas, new carbs, fuel pump and fuel lines and still no gas to the engine.
Those would be the hypothetical symptoms.
This would be the cause...
I found this in my drawer of old fittings. It is the primary "T" fitting for a 426 Hemi fuel line setup (6-Packs used a similar one and I think Chevys did too).
The bottom outlet is drilled through properly:
The exit outlet is drilled through properly:
But the inlet in not drilled and is solid brass:
Looks like a factory practical joke played on some poor bastard like us who ends up buying that repro fuel line.
Let that be a lesson to you all: Always check the stupid simple stuff first.
Now, whose car can we install this on that would appreciate the practical joke????