not sure if i posted in right place so i well try here

i am doing a motor / trans swop

i got a TCM and ECM off ebay and used a proxy vin for the OS

he used HPtunes and sent me to file of my OS and i DL the demo VER of HPtunes to help find some more info i need befor i can keep moving
i want to get soon a full copy of HPtunes but with out a working wiring/ system it well do me no good intell i get power to every thing

i am doing a MD GMT560 setup of a 8.1l / allison 1000 2004.5 install .. motor and trans are not from same truck every thing came in parts
the OS is from a gmc topkick v8 2004
VCM ID 11ka0afqu4069 GMT560
VCM OS ID: 12587603
TCM OS ID: 15169836

and need to find out 3 things befor i can start making my wiring harness from the ground up

1 fuel... i would like to do a factory returnless system ? in the tune how do i find out if my OS is setup for
fuel on... or... if it is a PWM fuel setup .... i just want to install a fuel pressure regulator at the tank and have fuel on when it asks for it
i have tryed to look to see if i have flat injector tables but not sure where to look from what i have seen i think i do but not 100% sure to make sure

2 where can i look to find out if my OS is setup for the newer or older truck style throttle body the GM 8.1l has 2 types at this time i have a older truck type

3 all so trying to find out what NSBU switch? the TCM is looking for ... i would like to install the newer one plug kind
- 2001-2004 Allison NSBU Switch (LB7). Part no. 29540479. Has 2 electrical connectors on the switch.
- 2004-2005 Allison NSBU Switch (LLY). Part no. 29541852. Has 1 electrical connection on the switch.


well the TCM care what one i install and just pin out what the TCM wants to see or is the inside of the NSBU not the same and well not side the info the TCM is looking for

any helping finding this out would help out alot and many thinks to any one that can help

PS i can send proxy vin or and OS file that was flashed to my ECM / TCM


thanks again so much guys