Many resales of the Holley (Sniper) & other aftermarket Fuel Injection Systems

greymouser7 said

Does anyone have experience installing these systems?

Speculation as to why so many resales? (Do they suck or can it be attributed to owner operator failure?)

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I looked heavily into it. I found 90 percent of the issues with either FiTech Holley and even Edlebrocks FI conversion kits boiled down to the person installing and operating it. Adding sensors and electronics to vehicles and engines never designed for them by people often who can barely turn a wrench results in lots of issues.

The other 10 percent comes from a combination of mismatched parts, not buying the full system and even the local fuel blends. For example, both the Holley and Fitech seem to struggle with the Mopar factory style ignition systems but converting to HEI or going with the added spark controllers for the kits seem to solve those issues.

Another issue is with dual plane intakes. Lots of people have reported uneven fueling and even puddling after going to one of these kits. That can be somewhat tuned for but requires more than just plug and play.

All in all, if you’re going to go EFI, your best bet is to purchase a complete system and where possible, a fuel rail/direct port injection.