[chopper]

Is this a new problem with a car that's been running OK up until now, or is this something that began after some equipment change (new carbs, etc.)? That is, can you isolate and correlate the appearance of the problem with some modification which was performed? For example, did you recently replace something which resulted in rerouting of fuel lines under the hood, and shortly afterward notice the stalling problem? Keep in mind that the failure mode may have been added during cooler weather and is just now appearing with the onset of summer temperatures. If you can correlate it to some particular activity, it will narrow down the list of possible offending equipment.

Are both carbs manifesting the fuel starvation, or only one? Does your setup use both carbs equally throughout the rpm range or is one the "primary" carb? If either of these is true, you might swap carbs and see if that fixes the problem; this would imply the problem is in one carb and would suggest a teardown of the offending carb is in order.

Have you checked or changed your main fuel filter lately? For that matter, have you checked to ensure that there is no debris in the fuel line or around the pickup in the tank? It is possible that you may have picked up some corrosion in the fuel tank over the winter due to accumulated water in the tank, which may have led to the transfer of scale or rust throughout the fuel lines. My car had a steel log manifold installed from the previous owner and it turned out to be unprotected on the inside; when I removed it the first time I found it to be partially clogged with corrosion. I'm not all that familiar with Edelbrock carbs, but I seem to recall that they have small internal scintered bronze fuel filters which may get plugged with debris; have they been cleaned lately? As you can see, I'm trying to make sure that you have unhindered fuel flow to the carbs as fuel line blockage is one of the things which can cause this type of problem. Hope this helps.