No point in MAF tuning till you figure out the fuel.
From the factory, fuel pressure drops off in boost compared to what it should be. Hence the oddly sloped injector flow rate table.
If you get a fuel pump rewire, that should bring things back up to par. Then you'd run the values from 100 kPa vacuum in both IFR and offset vs pulsewidth vs MAP in all columns.
Or you could just tune around all of that via PE and MAF tables.
Whatever floats your boat.