Now that your choke is working, you need to set the "high idle" speed on the fast idle cam. Service manual says:
- Engine off.
- Transmission in Park or Neutral.
- Open throttle slightly.
- Close choke plate until fast idle cam tang can be positioned on the second highest step of the cam.
- Start engine and determine the stabilized speed.
- Bend the fast idle tag with a screwdriver placed in the tag slot to set to the specified speed (M/T 2600 RPM, A/T 2800 according to 71 Ply SM).
- Caution: Bend tag perpendicular to the contact surface of the cam. Bend only when the tang is clear of the cam.
- Stopping the engine between adjustments is not necessary. However, reposition the fast idle tang on the can after each speed adjustment.

The service manual has a good pic of them making the adjustment. If you don't have one, recommend you get a copy of the factory service manual for your car.