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  1. <img src="//images.holley.com/forum_brand_holleyefi.png" …

    Oct 24, 2025 · If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start …

  2. Home - Holley Performance Products Forums

    Oct 24, 2025 · Home DescriptionIf this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to …

  3. V2 EFI software upgrade on Gen 1.

    Jun 12, 2024 · I just noticed that the V2 EFI software supports both Sniper 1 &amp; 2, but I saw the note in the overview that say call Holley because V1.3 needs a special update. Is the …

  4. Revised Sniper 1 Downloads Page - Holley Performance Products …

    Jan 11, 2024 · If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start …

  5. Has anyone replaced the Sniper injectors themselves?

    Sep 7, 2019 · I'm interested as well. I had one quit on a Sniper 2300 about 10 miles from home. Called Tech support who had me send the entire unit in. I asked specifically if there were plan …

  6. Should I download to ECU, or upload from?

    Jul 13, 2019 · I'm still early in the tuning stages and monitoring everything I can. When I reconnect my laptop to the ECU the next day with the same tune still open it tells me that the the fuel …

  7. Sniper not connecting with laptop. - Holley Performance Products …

    Apr 18, 2022 · Sniper EFI Tuning & TechOriginally Posted by Danny Cabral EFI Software is for the laptop/PC computer. EFI Firmware is for the ECU & touchscreens. The EFI (laptop/PC) …

  8. Base Timing Table - Holley Performance Products Forums

    Feb 11, 2024 · Hello Everyone. I have a bone stock other than my Sniper system Chevy Nova with the 350 small block. I have it running good with the stock distributor, but I'm ready to put …

  9. Engine Vacuum vs MAP - Holley Performance Products Forums

    Oct 29, 2018 · Hi all. When working with engines, I'm used to dealing with vacuum rated in inHg (or inches of mercury). So, now that I have a Sniper setup on my engine, everything is in kPa, …

  10. MAP kPa to Boost PSI Equivalents - Holley Performance Products …

    Sep 2, 2013 · Every 6.9 kPa over 101, is 1 PSIG of boost: 100 kPa = 0.0 psi 101 kPa = 0.1 psi 102 kPa = 0.2 psi 105 kPa = 0.7 psi 108 kPa = 1.1 psi 115 kPa = 2.1 psi 122 kPa = 3.2 psi 129 …