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Holley 550-510 Sniper EFI Self-Tuning Dual Sync Kit

510-550-510K2


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550-510 Sniper EFI Self-Tuning Dual Sync Kit
Sniper EFI Self-Tuning Dual Sync Kit
  • Small Block/Big Block Chevrolet
  • Shiny Finish
    Includes:
  • Sniper EFI System
  • Dual Sync Distributor & Harness
  • Distributor Hold-Down
  • Spark Plug Wires
  • Currently unavailable.
    This product is not available, please call customer service for options, at 1-800-345-4545.

    do you have a a kit for a 454 marine engine?

    Asked by: 25 baja islander
    The FAST EFI system is the only marine EFI systems we have currently - https://www.jegs.com/i/FAST/244/30363-06KIT/10002/-1
    Answered by: Rusty B
    Date published: 2019-04-05

     What kind of fuel pressure does this need to run.  Does it have to have a fuel return back to the tank?

    Asked by: Rusty B24
    This does need a return line to the tank.
    Answered by: Dean R
    Date published: 2023-05-12

    Does this require the Oxygen Sensor? If so, does this kit come with it or do you have to purchase separate?

    Asked by: bryanr12
    Yes you must use a o2 with it and it does come with it.
    Answered by: BrandonJ
    Date published: 2023-10-28

    is this the master kit

    Asked by: harville 32
    No, this is the self tune kit, you can add this part number to make it a complete master kit - Part Number: 510-526-7
    Answered by: Rusty B
    Date published: 2017-12-29

    Can I get this with black spark plug wires?

    Asked by: Toddw
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