2004 g35 coupe 6mt, powerlab gt3582r kit from 350z, 775 cc fic injectors, stock maf, uprev osiris tuning software

I have some issues regarding decel and free revving ranges. I uploaded screenshots of my datalogs.
Whenever I rev her without load (free rev), she goes super lean (130+ afr in one bank and then the other). Throws misfire codes, lean and rich shift codes as well.

I have been trying to attack this for few weeks now and can't seem to resolve it. I pulled the injectors (to find serial number for data match flow, however these injectors are an older style so no data was available at fic), changed plugs (one step colder copper ngk plugs, from one step colder iridium), checked for exhaust leaks (didn't see anything, will take another look this weekend, maybe I was sloppy).

I uploaded the generic 775 cc fuel injector clinic latency values as well. These values did not work well for me (i increased my 14v to 1.7 ms and 10v to about 2.5 ms) and this stabilized the idle.

My cruising conditions and wot afrs are practically spot on, its just the shift and deceleration that is giving me issues. I tried adjusting the mpw from 0.4 to 2.0 (and everything inbetween with no real improvements). I tried making adjustments to the k-values and the maf table (under 1v for decel).

Anything above with what i had originally (14k), car would die when I would shift. I changed it (about 10k) and then multiplied by its inverse for the maf table, hoping this would resolve my misfiring issue under decel. To my understanding if you have crazy afr values it is a misfire issue. This didn't help either honestly.

I noticed that my plastic plug for the lower o2 sensor is partially melted into the heat wrap I have on my cross over pipe ( my first time doing an FI build, and tuning as well, and I didn't realize the pipe would get that hot). Could this be the root of my problems? Can the incorrect latency values for the injectors be giving me decel problems? Could an exhaust leak be giving me this inconsistency from one bank to the other?
In the powerlab kit the pipe from the down pipe has 3 bungs, I have both of my lower o2 sensors installed into this pipe. Can a maf sensor be installed backwards (regarding direction of flow, I didn't check this--it just popped into my head for potential issues). ?

Any help would be seriously appreciated, I will share my tune, and solution to this problem as well once resolved. I hope to help other people that will have the same potential issues in the future.

Once again Thanks vq family