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Running A/C with Holley EFI

I recently finished the sniper efi install. It's a nice clean install. Took alittle longer than planned but its right. I did NOT connect the a/c kick wire. Adjusted IAC to 3% Idling around 670rpm it does not drop idle rpm when compressor kicks in. This works excellent. So far I'm impressed with...
- Zmar93
- Post #9
- May 13, 2021
- Forum: Engine Performance + Maintenance
Running A/C with Holley EFI

I'm all for less wiring.... I'll try running a/c without first. Im thinking the original tach wire is the white wire in the factory distributor 4 pin plug. I'll likely use the sniper screen anyway just wondered if a guy could make the factory tach work right again. One other question.. Whats...
- Zmar93
- Post #6
- Apr 24, 2021
- Forum: Engine Performance + Maintenance
Running A/C with Holley EFI

Ok thanks. I was hoping there might be a simpler way. I will add in a relay since I'm worried about ac at idle. Not sure yet how it will work with efi but with the carb I had to run an ac solenoid to bump idle up, it's a high compression 355 lopey cam.
- Zmar93
- Post #4
- Apr 22, 2021
- Forum: Engine Performance + Maintenance
Running A/C with Holley EFI

1993 K1500 silverado. I've been looking through my Haynes manual wiring trying to figure out the correct way to wire a Holley sniper unit into the factory a/c. Im thinking a ground triggered relay is needed? I know the Sniper A/C IAC Kick wire uses ground so I cant hook directly to compressor...
- Zmar93
- Thread
- Apr 20, 2021
- Replies: 8
- Forum: Engine Performance + Maintenance