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Old 03-26-2020, 06:25 PM   #1
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Join Date: Mar 2007
Location: Colorado Springs, CO
Posts: 32
Holley Sniper wiring

I've searched and searched until my eyes are bleeding but I haven't found my answer. Maybe my Google-Fu is just off...

I'm hooking up my Holley Sniper system in my 71 and wiring is not my strong suit. I have a Painless harness and according to Painless I can use their pink wire as switch power for EFI. But they also say to connect that same wire to the Batt terminal on my HEI. I asked Holley if I can use that as the connection for the Sniper pink wire. They just repeated the same, it has to be a clean power source.

Can I use this wire, it comes from the ignition via the fuse box, for my Sniper? If not, how are y'all connecting the pink wire on the Sniper?

Sorry if it's been beat to death, I just couldn't find the answer.

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Old 03-26-2020, 07:06 PM   #2
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Location: LaSalle Mi
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Re: Holley Sniper wiring

If you really are worried about the clean power for the sniper- y off that pink wire so it runs to the distributor like normal, and use the other leg to trigger a relay to supply straight from the battery voltage to the Sniper.
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Old 03-27-2020, 11:09 PM   #3
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Location: Yuba City, Ca
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Re: Holley Sniper wiring

Be sure all your plug wires are high quality when you get sorted out. I had noise from mine and it was havoc for the efi. As far as wiring a direct wire for the power from the battery seems to be the way to go. I’m sure some more people will chime in. I’m going off my old kit so there could be some changes.
72 Blazer CST 4wd highlander
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Old 03-30-2020, 02:57 PM   #4
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Location: Montrose, CO
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Re: Holley Sniper wiring

I just installed a sniper unit over the weekend.

Get a test lite and find where you will get key on and cranking power on the fuse block under the dash. That is where you connect the pink wire to.

1972 K20 Cheyenne- 350/350/205
1972 K20 Custom Deluxe - 350/350/205
2007 2500HD LBZ CCSB
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