[SOLD] Holley Sniper EFI-Complete system-$600 OBO

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Chris White

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Selling a complete Holley Sniper system for a SBM. Includes a coup[le of extra cables, harness's, ECU programming cable, distributor, in tank fuel pump....pretty much everything you need except a coil. This will control the entire spark curve, A/F ratio, etc. Spent over $3000 on all this. Includes temp gauge and in tank sending unit. Prolly only has 100 hours on it. My Dart didn't like it. I have more photos.....

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It's old and only likes carbs.... :)

To answer this seriously-I could not get it to reliably run. I've taken all of this off at least 4+ times and give up. I did have an issue with a bare/burned coil wire and also found an issue with the main connector causing intermittent problems but in the end I could not figure out what the issue was. Holley tech support would claim RF/EMI but after I corrected the coil wire it would still occasionally hesitate just off part idle. I have the maps/logs and it can be seen but I give up chasing this down. Isolated the keyswitch, ran it without an alernator, ran it with an MSD CDI and there is just something that I can't identify hence why I'm only asking what I am. I'm sure you Holley will tell anyone there is nothing wrong with the unit (TBI) itself.
 
Sounds like some of the issues I had with my Sniper system, mine would backfire under load, tried everything to eliminate it but, I ended up ditching the the hyperspark distributor and coil and stuck the stock ignition back in and the sniper worked great then. Those components are really sensitive and require perfect voltage and grounds and I like you got frustrated, now those parts are back in the box in my garage cabinet.
 
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