With a return system it’s always going to drain back to the tank. I think putting valves in will be a restriction on fuel flow. I think leave the prime time turned up is the answer.
There’s a reason most new vehicles start priming when the key is initially put in the ignition before it’s even turned. Hop in a newer vehicle and put the key in but don’t turn it. Listen and you can hear the pump prime.
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There’s a reason most new vehicles start priming when the key is initially put in the ignition before it’s even turned. Hop in a newer vehicle and put the key in but don’t turn it. Listen and you can hear the pump prime.
Sent from my iPhone using Tapatalk