CJ ITT Split
Had the same thing happen on a CJ after overhall.
Engines went away a perfect matched pair and came back with different N2 and ITT readings in the cruise.
Was told by the maint. organistation that it was standard and that nothing can be done about it.
Have just had a CJ2 back from a HSI and there is now a split in the N2's of about .5% and 10oC in the ITT's. Same answer.
Looks like once they change some of the parts there never the same again.