[JPBrecheisen]

If it's not with the ignition, I'll recommend the float level in the carb be checked. Especially since it's been apart.

Had one that wasn't set right (was too low and not keeping enough fuel in the bowl) and it would go traffic light to traffic light just fine but would run out of fuel after a long acceleration on a climb or wound up at highway speed for about 2 minutes or less.

If you're not resolved yet, recommend that be checked like others have already mentioned.