http://www.carburetor-parts.com is happy to provide this video about the Holley 4000 electric choke. Buy this electric choke here: https://www.carburetor-parts.com/Carter-AFB-WCFB-Carburetor-Electric-Choke-Thermostat_p_64.html
Electric Choke function
The remote mic failed, and so the soundtrack is missing.
This is a demo of how an electric choke works. Some of the hand gestures
illustrate what the air load would do, so it's simulated by me nudging the
blade. Still a good video of function even without the sound though.
Holley Carburetor Choke Adjustment Tips
How to adjust the electric choke on a Holley carburetor. A full explanation
of the components and operation of the Holley electronic choke and how to
properly adjust the choke's opening and closing times, as well as the
fast-idle cam speed.
Carburetor Electric & Manual Choke Tuning - Summit Racing Quick Flicks
Norm covers the basics of how to start a carbureted vehicle on a cold
morning with either a manual choke or electronic choke. Learn the
differences between an electronic and manual choke and how to properly find
the right choke position.
Holley 4000 Carburetor Assembly - Part 1
http://www.carburetor-parts.com is happy to provide this information video
about the Holley 4000 teapot carburetor. The full rebuild DVD is available
on our web site.You can find parts for this carburetor at