Does anyone have a good base file for a built 4l60 with a 3500 convertor?

the stock shift points are fine in normal mode but in pwr mode i want to firm up shifts hold gears longer etc but with the stall it goes in 2nd at like 10ks as it spazzes out from input rpm being way up and no output pulse

are there any bin files to suit a built 4l60e with a 3500 stall?

Has anyone got a file for a built 4l60e with 3500 converter for a good start?

Thanks but i was aiming not to do via box which im pretty sure i can do whats needed

my ecu is
service number 16176424
09354158

was told that is 12p

i have no idea and im having trouble finding info about it due to being auto for some reason.

so i cant seem to find anything about this but i have a vs v8 auto which i can gather is $12p setup. What i am wanting to do is real time tunning and wideband setup like the 11p. Question is, is this possible how can i do it if not how can i do it another way without cutting the loom ie making patch...

Awesome thanks guys yeah from what it seems i can just change ppk in ecu and will do dash

I know its been covered heaps but still yet to get full answers. I have a vs v8 factroy built 4l60e and swapped to 3.9 diff gears obviously speedo is out and same as shift points. First issue obviously speedo doesn't read correct which in turns throws my shift points out including lock up convertor ...