2017 Silverado 5.3 E92A Primary/lift fuel pressure issue

New build just brought to me for tuning.
waiting on confirmation on what HPFP is in it and what Cam lobe.
My main question is should i be able to read a FPCM on this car? I cant.
Lift fuel pressure is all over the shop. Hoping its just because I haven't updated Fuel system settings to match whatever pumps in it.
Log attached. It's a 5.3 Twin turbo. Lt4 injectors. Cam phaser lockout kit.
Also , what sort of power are the stock intank pumps good for on these trucks? (0% ethanol)

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