The fuel line goes from the pump to a T connection, where it splits to each carb. If the pump was going out, then the problem should exist in both cylinders, and not just the front. The pump seems to have good pressure, and equal amounts of fuel look to be going through the carbs into each cylinder.
FWIW, I tried bypassing the fuel pump, and fed gas through an IV canister to the carbs, both when it happened out in DV, and once since. The rear cylinder ran fine, and the front didn't.