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

slant six said
I would surmise that most folks sell these becuase they will not dedicate the time and hours to tune it Properly. Or Lay out the Ca$h to get it tuned on a dyno.

I have had Multiport on my '79 Volare Slant 6 since 2008. For years, every drive to and from work was a tuning session... Same with super cold winter mornings
Once you get it tuned they are nice.

Also a good working knowledge of computers and closed / open loop systems and engineer brain is helpful.

Also you can mistype a number or put a decimal in the wrong place and it can shut the entire system down too. Learning how to save and revert if needed if helpful.

Part of it is the marketing. People read "plug and play" or "best thing since sliced bread" and think they will get super awesome performance with zero effort. Could not be further from the truth, have to read between the lines. Can't tune the thing on a dyno if someone can't even get it running.

I'll agree to an extent about needing a working knowledge of computers. If you can't perform basic file functions like "save as" or understand how to retrieve files you probably have no business using EFI. You're not dealing with code or programming though so you'd have to be pretty out of it to not be able to deal with basic file navigation.

The Holley software is fairly easy to use, you're mostly just filling in fields. At some point you will want to build custom fuel and spark tables but there are plenty of YT videos on how to do that. Understanding open and closed loop is good to have a grasp on but not necessary to get the car running decently since the Sniper is self-learning. Interpreting the data is sort of the black art piece though. Took me a while to understand what I was seeing and how to utilize it.

I'm also going to have to respectfully disagree regarding your last statement. I've fat-fingered a few things and never wiped anything out or had the thing shut down because of incorrect data. Would be pretty hard to do that in the Holley software. Have to be careful when updating the ECU firmware but that's the only instance I can think of where there's a chance of crashing the thing.