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Forum: EFI General Questions & Comments

Questions and/or Comments, Installation or Otherwise

  1. Existing EFI

    Started by 1 2 NV, 12-23-2013 02:39 AM
    • Replies: 1
    • Views: 2,912
    12-23-2013, 02:56 AM Go to last post
  2. TPS Autoset VS Manual Setup

    Started by 10ace, 07-10-2017 06:25 PM
    • Replies: 2
    • Views: 505
    07-11-2017, 02:39 AM Go to last post
  3. 5.3L Base Tune Help

    Started by 187racing, 09-01-2015 07:41 PM
    • Replies: 1
    • Views: 3,760
    09-02-2015, 12:36 AM Go to last post
  4. Computer software freezing

    Started by 1967c10, 10-29-2012 04:47 AM
    • Replies: 1
    • Views: 2,289
    10-29-2012, 06:10 AM Go to last post
  5. Thumbs up V2 software question ++

    Started by 1967c10, 11-17-2012 02:20 PM
    • Replies: 1
    • Views: 4,913
    11-17-2012, 03:30 PM Go to last post
  6. Picking the right carb for my car?

    Started by 1969oldshardtop, 09-04-2014 10:14 PM
    • Replies: 1
    • Views: 2,194
    09-05-2014, 03:21 AM Go to last post
    • Replies: 1
    • Views: 396
    07-24-2017, 08:01 AM Go to last post
  7. HP EFI Part #550-604 - Fuel Injector Harness Question

    Started by 1985351, 07-04-2012 09:17 PM
    2 Pages
    1 2
    • Replies: 10
    • Views: 14,642
    07-07-2012, 08:27 PM Go to last post
  8. 553-109 Outputs

    Started by 1fast10, 11-07-2016 07:53 PM
    • Replies: 2
    • Views: 1,446
    11-07-2016, 09:56 PM Go to last post
  9. Digital Dash Issues

    Started by 1fast10, 04-11-2017 06:19 PM
    • Replies: 0
    • Views: 381
    04-11-2017, 06:19 PM Go to last post
  10. Holley Digital Dash Tach Issues

    Started by 1fast10, 04-29-2017 06:50 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,018
    09-12-2018, 11:47 PM Go to last post
  11. Holley Stand-Alone Digital Dash I/O Questions

    Started by 217_Firebird, 04-14-2018 09:53 PM
    • Replies: 3
    • Views: 545
    04-15-2018, 09:13 PM Go to last post
  12. 3.5" LCD Touchscreen AFR Setting

    Started by 3 window, 01-05-2016 05:43 PM
    • Replies: 3
    • Views: 3,124
    01-08-2016, 05:50 PM Go to last post
  13. Holley Custom Calibration Origins

    Started by 3 window, 02-04-2016 01:54 PM
    • Replies: 1
    • Views: 1,602
    02-04-2016, 02:02 PM Go to last post
  14. 3.5" LCD Touchscreen

    Started by 3 window, 11-07-2017 08:36 PM
    • Replies: 1
    • Views: 469
    11-08-2017, 03:06 AM Go to last post
  15. Laptop possibly wiped ECU clean.

    Started by 3 window, 04-18-2018 02:12 PM
    • Replies: 6
    • Views: 568
    04-27-2018, 03:44 PM Go to last post
  16. Holley 558-404 J4 harness

    Started by 3 window, 10-12-2018 11:29 AM
    • Replies: 3
    • Views: 461
    11-02-2018, 11:31 PM Go to last post
  17. Bought 505-606N kit, what else is needed?

    Started by 351W, 09-13-2018 10:53 AM
    • Replies: 1
    • Views: 932
    09-13-2018, 11:46 AM Go to last post
  18. 550-606N Ford MAP sensor help.

    Started by 351W, 11-05-2018 09:23 PM
    • Replies: 4
    • Views: 175
    12-07-2018, 05:38 PM Go to last post
  19. Holley sensor block options.

    Started by 351W, 11-06-2018 05:39 PM
    • Replies: 8
    • Views: 264
    11-08-2018, 12:25 AM Go to last post
  20. Loose leads wiring question.

    Started by 351W, 11-10-2018 05:49 PM
    • Replies: 3
    • Views: 135
    11-10-2018, 06:42 PM Go to last post
  21. Difference in Holley Digital Dash Kits

    Started by 351W, 11-15-2018 07:32 PM
    • Replies: 1
    • Views: 180
    11-16-2018, 09:28 AM Go to last post
  22. EFI Analog Display Gauges

    Started by 357notchback, 03-27-2017 10:30 PM
    • Replies: 9
    • Views: 853
    04-29-2017, 09:27 AM Go to last post
  23. Upgrading to 556-127, worth it?

    Started by 35window, 10-30-2017 11:15 AM
    • Replies: 6
    • Views: 641
    10-30-2017, 12:00 PM Go to last post
  24. USB to HDMI for Tablet

    Started by 360demonRT, 03-14-2015 01:59 PM
    • Replies: 2
    • Views: 2,735
    01-05-2016, 11:12 PM Go to last post

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