FiTech Dual Quad

Called Fitech yesterday as it doesn't seem to be 100%. After some convincing he decided to help, (tried to tell me everyone is happy with the dual quads with no issues, so I asked how many people call to tell them everything is great!).

BTW he confirmed all the settings for single throttle body are the same for dual quad. Apparently a stupid question, but I reminded him there is nothing anywhere stating either way, you tool.

Told me to check the AFR Trim, s/b -20 or less at idle, around 0 at WOT.
I'm at 50% at idle, which is the max.
Now, you can change the min/max, but not sure that would solve it. Also, AFR Trim effects the AFR Learn, the first being real time, the second a compilation of the Trim data.

So, my thoughts are bad fuel pressure, bad O2, or vacuum leak.

Everything is fairly new, and I'm not sure if this was an issue or not from day 1.

I'll try out the data logging on the way home. I have a fuel pressure gauge, but no AN fitting, and I'm not educated on O2 diagnostic.
My understanding is there is no O2 fault code.

I pulled some info from chevelles that seems to make sense, or apply.

Any input is appreciated.

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