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  • Throttle return spring

    Can someone answer the question if the dual throttle return springs on the Pro Flo 4 pass tech inspection, or do you need two additional (external) return springs on the throttle cable?

  • #2
    i installed a return spring for safety so do what you think is best . take it with you the first time to teck and add if needed.

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    • #3
      At our local track, you need 2 external springs to pass tech.

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      • #4
        Pedal return spring.
        Throttle lever return spring.
        Secondary return spring.
        Throttle cable return spring.
        And of course:
        Throttle Position Sensor return spring.

        To be reliable. You install 2 more combination springs......1 is a backup.
        The 2 combination springs are for the Throttle Cable/Lever.
        In my neighborhood, if you open your hood to check your oil, and the vehicle still runs after you close it.......Then your labeled the Neighborhood Mechanic.
        https://forums.edelbrock.com/filedat...?photoid=42773

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        • #5
          305C3174-B1D2-4D4F-9916-544670563EF0.jpegC9304448-07A2-45B2-A9E6-8665152A2B07.jpegThank you, I assumed the external springs were needed. Assuming is never the right answer. This is what I ended up with.
          Last edited by Flywme; 04-23-2021, 12:57 PM.

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