Back on the road!!!..... for about 5 min (engine help please)

Still sounds like a fuel delivery problem. A couple of thiings I haven't heard you discuss...
1. Condition of fuel tank and fuel filter- My barracuda had a rusty tank. It would run great until the fuel filter clogged with rust. Let it sit, the rust would setting in the filter and run until it clogged back. So, trash, gum, etc. in the intake prefilter and/or lines, and/or regular fuel filter would create a fuel starvation and stall.
2. Fuel boil/percolation. - Again, with today's ethanol, fuel will boil in the lines very easily once it heats. The fuel pump along with engine heat causes the fuel to vaporize and stave the motor.
3. Fuel pump. - Could it be bad?
4. Water or other problem with gas?
5. Newly rebuilt carburetor? Trash in it?

These are a few areas where I would look. Good luck!