Gassed budgie and 43"
I just had a quick peek at some data on that engine, and one that is properly set up
and the fuel flows when full rich were 42"/2570 = 154 LPH (40.5GPH) with a TIT of 1370dF and at 40"/2400 it was 136LPH (36GPH) with a TIT of 1300-1305dF.
You could do a rough scaling of this for 38/2400 and it would be 129-130LPH.
As 43" has mentioned with cold oil and cold atmosphere the density controllers will do their thing and they need to be set up right.
But one point to remember, and this applies to ALL ENGINES, no matter what, it is better to have a fuel delivery system slightly richer than slightly leaner Not drowning it though. Because no matter how hard you push the red knob in it will never flow more, but as the human FADEC you can control it back if need be. So be careful about having the LAME's reduce the flows unless they are ridiculous now. Better to have a fraction too much than too little.
All the best
DB
PS: If anyone wants to see this stuff and learn a heap, PM me your email address and I will keep you informed on when and where the next opportunity will be.