I'm not sure if it makes a difference but this was on an 4.5 LLY. When it was surging the fuel pressure would spike/drop on the log. Not sure if that...
Why would it skew the idle airflow numbers? It's designed to run in closed loop. You want it at stoich so there is the LEAST amount of correction in...
No, it probably could use it, but i believe i got it working better. The last time at the track, prep was horrible and spun, even after a john force...
Try this file out. I left all the stuff you changed back the way you liked it on the idle tables alone. My torque tables are still in this one also.....