You're saying that even while cranking, sufficient vacuum should exist such that a drip tube should not be necessary. Ok, I think that makes sense as when I crank the engine, it doesn't leak. It only leaks when (1) cranking and pushing on the accelerator...AND...(2) when not cranking, pushing the accelerator alone makes it leak (because there's no obvious vacuum).
So that's a 'no' to the drip tube...but I'm definitely gonna reinstall the vacuum line that I had disconnected that was running to the wipers. Then I'll do some more testing. I know there's good vacuum in that line because as I said earlier, when I dump fuel into that line while cranking, it's on the verge of starting.
When you say defective ignition, whatcha thinking? Rotor, points and condenser are new. The ignition switch, wiring, plugs, wires, cap, and coil are all, also new. Fuel pump is mechanical. Everything else electrically works as it should. The only things different now than they were prior, are the size of the fuel lines
