Fuel Pump Electrical vs Mechanical

Discussion in 'Technical' started by Snoho73, Jun 28, 2026 at 5:51 PM.

  1. Snoho73

    Snoho73 Member

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    My 73 302 has a mechanical, I assume stock fuel pump and I am getting 10-12 psi at the Edelbrock 1406. Before I add a regulator, was wondering should I install an electric pump. What pros/cons? Pressure regulator suggestions?

    Mike
     
  2. TeeEl

    TeeEl Senior Member

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    I'd stick with mechanical, but get one that produces no more than 6psi...
     
  3. Snoho73

    Snoho73 Member

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    Current one appears stock, how do I know output of one off the shelf?
     
  4. jasonwthompson

    jasonwthompson Member

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    A small block Ford mechanical pump should not exceed 7 psi. at maximum. Benefits of a mechanical, cost, simplicity, availability, installation\replacement. Benefits of an electrical, easy start at all engine temperatures, less drag & junk hanging off front of engine (especially if power steering), EFI ready, consistent pressure at all rpm's, possible delivery of cooler fuel.
     
  5. Snoho73

    Snoho73 Member

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    Well that is the problem, my mechanical pump is delivering 10-12 psi at carb. I have used two gauges to check in case of a bad gauge. I have read reviews of most stock pumps and they are rated less than 6psi, but lots of users say they got more. Just confused...., this car will be a low HP restomod, so just trying to be efficient and frugal (cheap).
    Thanks
     
  6. TeeEl

    TeeEl Senior Member

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    There's no way your engine will run with an Edelbrock carb at 10-12 psi. It would flood out.
    Edelbrock carbs don't like more than 5psi.
    Pressure regulators are better suited for electric fuel pumps...
     

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