Can somebody verify something for me please?

[AKlowriderZ71]

I'd really appreciate it if you guys could verify for me that this tune file is a STOCK tune. I just read the PCM on my 2001 LB7(recent purchase, unknown history), and compared it to 3 tunes from the repository. There are some differences, mostly transmission tables, and then a few others that don't seem to be very much of anything at all.

I don't know if this truck is already tuned. I suspect that it isn't, no black smoke at WOT either, but I don't want to start following the tutorials and "tune" and already tuned PCM, then smoke my stock transmission.

Thanks in advance!

[mecanicman]

I compared it to tunes I have and its not quite the same as any of them. The changes are so slight it is likely just a different version, my guess from looking at it would be older. There are no power modifcations made anyway.