There are lots of conversion electric chokes, which replace the hot air type Q-jet chokes.
https://allcarbs.com/product/rochest...ke-conversion/
Some are usually sold on Ebay.
https://www.ebay.com/itm/Quadrajet-e...cAAOSw-mVdoPSq
Some are less than $20. Some are nearly $100. Don't know which ones are the best quality. Some come with a pigtail. Some don't. I've read that some wire 'em to the hot wire to the windshield wiper motor.
https://cliffshighperformance.com/Qu...tail-connector
https://quadrajetpower.com/choke-components/