– Sorry to hear you are having problems with your carbs.
My car also suffered fuel starvation the other day, but, luckily, I was able to push it home.
( As I’d barely pulled out of my driveway.
I hope I’ve tracked the problem to a blocked fuel line (new parts on their way).
But, for me, this was confirmed by running the engine without any problems from a petrol can.
I know you know a lot more about this sort of thing than I do, but I thought I’d mention it just in case.
Good luck, Paul.