EFI for my 340 Duster

Backally said

I’m fighting with a Holley Sniper on my 408 Duster right now. Ran great for 6 weeks, now if it starts barely idles. They are telling me rfi issues. Not totally sold in that. The connections come out of the Sniper (and I bet the Fitech too) right by the distributor and wire bundle by the firewall. Doing it again I would put shielding in the wires during the install. Then again, know a guy that put one one his 408 Dart, no issues. So wtf?

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It's really hit or miss with the rfi issues. I have seen all kinds of stuff cause interference on all the systems. Best recipe for success is to start with the correct ignition components, and then go about wire shielding if/as needed. I have seen an MSD box make a garage door go up and down...the automotive world is full of electronics "noise" but...95 percent of the efi systems I have sold or installed have proven pretty trouble free however. I again like the sniper, but have had decent luck with others also.