75 GMC sierra classic face lift and conversion to short bed

[sam in vista]

Despite having the DBC chip in blue green ECM, its was not easy to convert from DBW
the harness repair had its own challenges because we had to change the TPS and IAC and their socket changed respectively.
I made mistake and bought those chines 90MM throttle body with spacer to 85mm

after repaid the wire completely
I tried to start the engine, I was able to turn it on and keep it on idle smooth
the only issue here was insanely loud whistling from TB
but the main issue is the engine wont rev at all and drops the power
I noticed the TB does not send any signal to the ECM
double checked the TPS and wiring again, no issue
I replaced the TB with factory Corvette LS1 TB, no result
fuel pressure is good
Injector needles are clean and tested under pressure; works great
tried with airflow meter and without, but same
MAF and MAP sensors are placed in their own slots
have new spark plugs

not sure why ECM does not read from TPS


PLEASE FEEL FREE TO HELP

here is the video :


LS1 Whistling




here is the parameters reading: