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A decent fuel pump for a 200hp car should flow at least 50gph. Your 4gph is nowhere near enough. And remember, what you got on your test is the pump's free flow output. Make it pump up a few pounds of fuel pressure and it's gonna drop even further. Given your 54 second test, it should have pumped almost a GALLON of fuel.
You need to fix the fuel flow problem. I know it's not fun or glamorous, but it needs to be fixed before you take it to the track.
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