I think that's your answer right there. If the ECU thinks the throttle is only open 80% it's obviously not going to add the right amount of fuel for the demand. That could affect the entire sweep. Fix that before you start messing with anything else.

Regarding the data logs - Holley needs to update the way the Sniper software handles them. First, there is no time stamp, only a seemingly random sequential number so you have to figure out which one you want to look at when going through the directory. You can save them with proper file names on the laptop though. Also, if you have logging start automatically at startup or whatever parameter you choose while the car is running that's OK but you have to go into the handheld and stop the log before you shut the car off or it won't save. That's probably why you don't see your runs on the SD card.

Couple basic questions -

Have you checked the static timing against the balancer?

Have you verified that you have 60spi of fuel pressure?

Have you verified you have no intake or exhaust leaks?

Where is the 02 sensor installed?