2016 Chevy Suburban 5.3 flex 2nd LT with 230,000 miles

here is the list of new parts in the last 90 days:

Oil pump

timing chain gears, guide, and chain

VVT solenoid 

cam magnetic position actuator 

cam position sensor 

oil pressure sensor

mass airflow sensor

8 spark plugs

8 ignition coils

plug wires

8 flues injectors

driver side head removed and rebuilt

driver side lifters and pushrods with guide trays

rebuilt transmission and torque converter.

now, there were codes when I started down into Pandora’s box. Since that time there are No codes. No outward reasons that I have found. The AFM/DOD system is basically new and seems to be functioning perfectly as designed. Only time there is an issue is while accelerating. When accelerating it seems to hesitate as though it is starving for fuel. According to the D7 live data the fuel rail pressure is constant around 60psi and will drop to the 40s briefly when accelerating. That seems logical to me? Only thing I can think is that the fuel pump itself is either going bad or because they say the filter is internal it is blogged and starving the motor just enough. Would love to here your thoughts or even willing to drive to you if you were willing to take a look at it?