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Old 10-26-2022, 06:09 PM   #3
biketopia
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Join Date: Jul 2015
Location: Warrenton VA
Posts: 1,001
Re: Can you utilize PWM with a return line?

Exactly what Joyridin said, one or the other, not both. Remove the internal regulator and use the PMW to set fuel pressure or, remove the internal regulator and install your own regulator and return line and run the pump at constant flow. If the FiTech is anything like the holley snipers, I wouldn't trust the internal regulator to hold up long term.
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