fuel pump draining back to tank

I bought a cool carb kit last weekend at Carlisle for my Quick Fuel. So I went to install it today and noticed when I disconnected the fuel line at the filter it was dry. It's been hard starting when sitting for several days or longer. I replaced the fuel pump for the same reason last year. It's a Delphi from AutoZone. Anyone have a better place to buy a stock fuel pump?

The cool carb kit. Only had it on and drove for about 45 minutes and restarted without a sputter. So far I think it's a big improvement over the Edelbrock insulator gasket I had on. Idled much better at stops, so far I'm impressed. Blaming both of the issues on the ethanol. Even before I put the Edelbrock insulator on and just had a gasket, you could see the fuel boiling in the carb.