1. You said there was no fuel at the carb. 2. You need a timing light to check timing. 3. Take the return line loose at the carb and blow some air through it. Listen at the tank. Might require a helper. 4. If the pump is not working correctly then it needs to be fixed. If you KNOW the pump is working leave it where it is. If it isn't then you might have to drill a hole, cut a line, and even run some wiring, or go back to the mechanical pump. You do have a problem in that the car won't run or runs intermittently. YOU need to find out why. Guessing but never really knowing what's wrong takes forever. I understand that you are trying to learn the car, but you need to take one thing at a time and check it out. Then move to the next item.