Has the tank ever been replaced? Has the sock on the fuel sending unit ever been replaced? Has the fuel line ever been replaced? What about the rubber lines? Is the in line filter flowing?
Based on what you discribed it sounds like the carb was not getting any gas when it stalled?
I wonder if you have a bunch of debrie in the tank that could be cloging the sock filter? It get stired up and starves the pump? Wait a while and the debrie falls to the bottom of the tank. Just a theory.
I hate messing with fuel problems. I upgraded my fuel system in stages and it would have just been better to do it all at once. I have a new tank with RobbMc pick up. 1/4 return line. 1/2 supply line. Stock fuel pump. This system works well for me.
I've only had the car for two years, so I can't say for sure on any of those items. I'd venture a guess that the rubber lines and inline filter were replaced when the car underwent a partial restoration (5+ years ago). Just from a few of the other problems I've ran across, I'd bet the tank, sending unit, and hard lines have not been replaced recently. It's interesting seeing some of the corners that were cut to do a quick resto on this car.
I too dislike messing with fuel issues and this isn't a problem I was anticipating. I'll probably be moving in the next couple of months and I'll have to ship the car. I'd like to be able get the car on and off the transport without issue. This particular problem is frustrating because it happens with no warning. By the time the car starts to sputter, it's too late. There's no saving it.
I'm planning on going to a fuel injection setup when I get the time and have some money set aside for it. The whole fuel system will be fresh from front to rear that way, plus I'll have the added benefits of fuel injection. Really trying to find a way to keep the electric pump in the tank though. I've read reviews on the Spectre (sp?) EFI-ready tanks and it sounds like they have problems with fuel gauge accuracy.
All that aside, is there an easy way to check the eccentric while I have the pump off (as Amervo suggested)?