Sniper installs can go sideways if you don't take proper precautions and then you have extra troubleshooting to do. Here is some good advice from EFI System Pro regarding wiring:
#2 Wire It Properly
Most important!!! MAIN POWER AND GROUND need to go to the battery. Directly to the BATTERY!!! Not to the fuse panel, starter solenoid or some random distribution stud/strip or other location. Direct to the battery means to the battery. Make sure you are using proper wiring practices. Incorrect connections will result in excessive resistance. Resistance results in heat and heat results in more resistance. A common issue we see is a result of poor fuel pump grounding running a eyelet from the pump ground to a rusty or painted surface. The resulting resistance can burn up fuel pumps, wiring and relays. Extending wires with too small of a wire gauge will also result in the same damage.
https://www.efisystempro.com/efi-pro...olley-tom-kise
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Will Rivera
'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
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