Random High IAC counts and idle

[chris989]

any play in the throttle shaft?

I bought a TBI from this place when I rebuilt the motor/driveline ~5 years ago.

https://www.sprperformance.com/

The injectors that came with it failed after a year. The pedal always feels stiff off idle even after replacing the cable.
In the past I have pushed and pulled on the shaft while the truck was running thinking if there was play i could affect the rpm but it never made a difference.

If the shaft was loose it would just idle high? not add the IAC counts?