Timing Curve on 360 in an RV

Someone asked above about locking out the distributor, that is not an option as the Hall effect distributor is non adjustable. Timing is verified by locking timing At 12* and verifying with a timing light. After verifying, timing is unlocked and the computer takes over. I have discussed with tech support multiple times and that conversation is a waste of my time as I believe a lot of efficiency is left on the table with the limited timing with no explanation as to why this backfire occurs.
If I am reading this right, the new system base timing is verified by 'locking' the timing in the software at 12* and verifiying on the damper marks with a timing light.

But that is a different matter from locking the mechanical advance mechanism in the distributor. Is this the stock distributor being used for this new system, or a new distributor being provide with the new system? I guess this is a dumb time to ask this but what EFI system is this? Pro Flo 4, with a new distributor?