Another vote for Mallory. I ran a 110 converted to bypass with a Mallory bypass regulator. Ran 1/2" supply and return. Rock steady fuel pressure all of the time. Ran Holley Blue pumps back in the day. They were LOUD and unreliable. Holley Blue is a rotary vane pump. Mallory is a gear rotor. Gear rotor is much quieter and more efficient.
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