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Old July 9th, 2017, 08:29 PM
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charlescfp charlescfp is offline
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Join Date: May 2012
Location: Camano Island
Posts: 11
I have the MSD pump that is bundled with the MSD Atomic EFI. I'm running a "return" system with a regulator so the pump runs all the time. Even with it mounted on isolators in front of the tank, is is noisy at while stopped... don't normally hear it while driving. Maybe just being picky. The pump can run in PWM mode which is quieter but has its own issues with the fuel line pulsing.

Which Mallory pump are you using? I did a quick look and found a P/N 22257 for EFI.

And while looking, discovered Mallory was part of MSD... which, as of a couple years ago, is part of Holley.

Anyway, thx... pls let me know what you are using. It sounds like a good option.


Fred Pennington
'62 Falcon
289, 4-Spd, 9 in
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