They are not adjustable, It's all controlled by the ECM/ engine controll module. (computer) and sensors. Is the check engine light on ? You need to have the engine scanned with a scanner. Then you will find the area that your problem is in.
You cant
Adjust the throttle stop screw located on the side of the carb that has your throttle linkage connected to it.
They are not adjustable.
It is located on the side of the throttle body, opposite side where the throttle cable connects.
You can't adjust disc brakes
The throttle body base gasket would be located between the throttle body and the intake manifold.
It is located in the throttle body.
On the intake manifold, to the right (passenger side) of the Throttle Body.
That truck has throttle body fuel injection. There is no choke.
Yes, it has throttle body fuel injection.
On the passenger side of the throttle body under the air intake
It is fuel injected, TBI / Throttle body injection.