EFI considerations for a 1970 383 with very mid cam

RustyRatRod said
I've been reading a LOT about the Sniper2 and it sure sounds good. 4 wires to hook up and that's it. Has good reviews, too.

On an old Mopar it is much more difficult than just 4 wires to hook up. Anyone who is thinking of buying a Sniper should spend a few hours reading the Sniper forum on the Holley website. The Sniper is a great product, but they are difficult to install for a lot of people. People who can't figure out how to attach a picture to an email will have problems with a Sniper. Same with people who think twisting wires together is a good connection.
The problem with a Sniper on an old Mopar is that old Mopars used IGN 1 and IGN 2 for run and start circuits. Those two circuits need to be tied together to power a Sniper. About 50% of the Mopar guys who try to install a Sniper get stuck at this point. The other 45% get stuck trying to figure out what to do with the ballast resistor. The various forums are full of these two questions. The other issue is that only the most popular cars have drop in fuel pump modules. If you don't have a popular body style then you end up having to hack the fuel system which isn't any fun.
I did a Mopar install article for Car Craft back in 2018 when the Sniper first came out and I've done a bunch of other articles and videos since then but people still have problems with the installs.
https://www.motortrend.com/articles/super-sniper-efi-sees-powerful-improvements-data-logging/