Holley Sniper EFI help

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

DNush

Junior Member
Joined
Apr 26, 2023
Posts
1
Reaction score
0
Location
frostproof florida
First Name
Daniel
Truck Year
1985
Truck Model
k10
Engine Size
355
I have an 85 k10 with 355 engine, currently installing a Holley sniper efi kit, where can I get 12v power in run and cranking positions to power the efi even when I’m cranking position??
 

Buck69

Full Access Member
Joined
Feb 2, 2023
Posts
227
Reaction score
293
Location
Northern British Columbia
First Name
John
Truck Year
1986
Truck Model
D30 CUCV
Engine Size
6.2 (removed)
The ignition coil receives power in both positions. I would contact Holley for their diagrams if you don't have them. Haven't installed one of their kits, but would imagine the fuel pump also needs to be powered in the start and through an oil pressure switch for safety during run.
 

SquareRoot

Full Access Member
Joined
Mar 18, 2017
Posts
4,198
Reaction score
8,044
Location
Arizona
First Name
Mike
Truck Year
85
Truck Model
K20
Engine Size
350
I "had" a Sniper on my 85 K20 with 350. Use the crank/run terminal in the fuse panel. That circuit feeds the ignition. Verify it with a test light. Probe the terminal while cranking to make sure power stays on during BOTH crank/run.
 

dbush

Full Access Member
Joined
Sep 12, 2021
Posts
83
Reaction score
134
Location
Cheyenne, Wy
First Name
Dave
Truck Year
1984
Truck Model
GMC K2500
Engine Size
292
I have the sniper on my 84 and use the fuse terminal (crank/run). As SquareRoot said make sure and test that it has 12 volts both during crank and run.
 

codfish

Drive a hybrid. I NEED your gas!!
Joined
Jun 9, 2022
Posts
195
Reaction score
580
Location
Newfoundland
First Name
gary
Truck Year
84
Truck Model
K10
Engine Size
350
What they said

On my 84 it’s on the left side of the fuse panel. Just a single spade connector is what I used as the spot on the panel I used doesn’t have a fuse. Used an inline fuse.

Codfish
 

Latest posts

Forum statistics

Threads
44,205
Posts
951,605
Members
36,341
Latest member
tmssldn
Top