Where is electric choke on 88 Chevy s-10 with 4.3l motor?

The electric choke on an 88 Chevy S-10 with a 4.3L motor is typically located on the carburetor itself. It's a small, usually rectangular, electrical component often found on the top or side of the carburetor, near the throttle linkage. It might have a wire harness plugged into it.

However, it's not always easy to spot. Because of the age of the vehicle, it might be hidden behind other components, covered in grime, or even slightly different in appearance than you expect. You might need a flashlight and possibly even some cleaning to see it clearly. A diagram in a repair manual for your specific year and model would be very helpful.