Sounds like a fuel flow problem indeed. Was the car running fine before this problem began? When you turn the key to the first position if you hear the pump run it should fill the clear filter within a second or two. It would help to see your fuel delivery setup. Can you take a picture of your carb fuel setup and post it up here? Include a pic of the electric pump too. Stock setup was a rubber line from tank to a steel line under the car that ran up into the engine bay, then another rubber line direct to the mechanical pump, mounted down low on the carb side of the engine near the front of the car; then a rubber line from the pump to a fuel pressure regulator and filter assembly with a glass bowl, mounted under the front carb; then from the filter regulator a rubber line ran on up to the front carb. Whomever installed the electric pump on your car could have used it to simply boost fuel from the tank to the mechanical pump, but most folks just bypass the mechanical pump altogether and send the fuel direct to the pressure regulator/filter assembly under the carbs, because if the mechanical pump fails, you won't get any fuel up to the carbs anyway in this configuration. If you have a dial regulator and plastic filter it's likely the installer ran the line from the electric pump direct to the carbs. I would remove the fuel line that attaches directly to the carbs, insert it in a clean glass jar, turn on the ignition and let the pump run. You should see a steady low pressure stream of fuel flowing into the jar almost instantly, if not, start working your way back down the fuel line, stopping at every connection, including the dial regulator, until you find out why there's no fuel flow. If the pump is running, but no gas is coming forward to the carbs, you could have a blocked fuel line or a blocked fuel vent. Good luck, and report back!
