l84 injector/head swap running lean, need help

[mrrattle]

2019 silverado 5.3 l84, high mileage so i swapped heads from a 2024, which uses the smaller injector(6mm vs 7.5MM)

still running stock calibration and original 2019 hpfp

i am now setting codes for fuel trim lean on both banks. i am thinking its probably the high pressure fuel pump,

i looked for stock cal file from a Global B l84 to compare to my global A file. i can find lots of l87 global B but no l84
anyone got a stock Global B l84 tune file to share?

anyone swapped heads and run into lean codes?

i have done lots of gen 3 and 4, but this is going to be my first gen 5. its my own truck. just ordered the ecm upgrade so cant even read my ecm yet.

thanks in advance

[mrrattle]

replying to my own question--with update in case someone else has done something similar

upped fuel rail pressure desired by 20%, this gives 18 mpa at top of chart (didn't go higher because there are other tables that max out at 18)
upped fuel quantity to pulsewidth table by 40% (hope this doesn't create other issues)

fuel trims are now under control in closed loop.---still searching for stock global B l84 tune file as well

now onto installing wideband and doing some VVE neural network training