2016 Camaro v6 (LGX) - uneven banks fuel trims

[Roland_Price]

Hi, everyone

I have a difference of 3-6% between my banks in different scenarios on my 2016 Camaro RS. Overall the STFTs + LTFTs are 0-10% on each bank after dialing in my MAF. I've already changed spark plugs (OEM) and injectors (OEM), and my only bet, for now, is on the timing chains

Is 3-6% difference between banks normal? If not where should I look next?

Thank you

[CYN_CRVR]

I just generated a histogram of the absolute value of the deltas between my bank 1 and bank 2 total fuel trims from a recent log.

63% of the deltas were 0% - 3%
26% of the deltas were 3% - 6%
11% of the deltas were greater than 6%

Overall average total fuel trims were 2.25% and 3.24% for banks 1 and 2, respectively.

This is from my stock 2023 Camaro RS.