1998 C1500 stalls when hot

[AlanDC]

Hey ppl, I'm having a stalling issue with my 1998 C1500 pickup 5.7 V8 https://youtu.be/iRzd-Foyz3w please turn up the volume in Sec 8.

I'll try to cover as much as possible:
120k miles
Engine internals are stock
Pacesetter long headers
MSD 6A ignition module
MSD ignition coil
MSD spark plug cables
K&N CAI
Stock trans

Trying to solve the issue I've change the following:
VSS (trans output shaft)
ICM
Whole distributor
CKP sensor
I've checked the 4 conectors on the PCM for loose wires and also some sensors and conectors just to be sure.

I have an OBD2 reader (MX2 + Torque pro app) and there's no codes even stored on the PCM. The issue just appears when the engine is fully warmed up.

I've done some monitoring on the real time information and have noticed that the O2 sensor on the passenger side is not fluctuating as the one in the driver side (between 0.2 and .9V). But when I spray some brake cleaner on the intake both sensors go almost to 1V, but then remains at different std by voltages.

Somebody told me to check on the O2 sensors or maybe the TPS but in the last one I'm getting readings even when the issue occurs.

Any advice is really appreciated

https://www.imaggly.com/uploads/20191119/327fd5658c3cb2ed2d5758d16ff917bb08a5c502.jpg

https://www.imaggly.com/uploads/20191119/3daa319d8de35456e6807370fdfba2ae5c59966a.jpg