Well, looking at the TCDS for both the plane and the engine, the config files are off for some values.
For example, the feathered beta angle is +80° +/- 0.5°, and is set to 89° in the engines config file.
The gas generator (the free turbine) should have a rated RPM of 39,000 RPM 29,894 RPM (EDIT : 39,000 is the max permissible RPM), and it is set to a default of 29,920 in the config file.
By the way this 29,920 RPM looks like a default value for MSFS because you can find it in the 747 engines config as well, for example. I have not checked but I guess we can find it in all the jets.
TCDS for the plane link : https://www.easa.europa.eu/sites/default/files/dfu/TCDS%20EASA.IM_.A.277%20%20Issue%2017.pdf
TCDS for the engine (PT6A-60A variant) link : https://www.easa.europa.eu/sites/default/files/dfu/EASA-TCDS-E.078_(IM)_Pratt_and_Whitney_Canada_PT6A--41_series_engines-01-31082007.pdf