EFI considerations for a 1970 383 with very mid cam

DionR said
So the Sniper doesn't have an issue with the loss of connection when the key comes off start and back to run? For a microsecond, there isn't juice on either circuit and it messes with the G3 swaps and causes the PCM to think the car turned off so it won't keep the motor running. So the Sniper isn't as sensitive maybe?

I've never seen an issue with that. I've had a Sniper in my car for 8 years now and I've installed dozens of Snipers on other cars. Maybe there is a capacitor on the input line that provides a little bit of "smoothing" so the ECU sees enough voltage to stay turned on.