In this age of electronics and bolt-on fuel injection, it still isn’t unheard of to run across an older vehicle–especially one built for performance–that still has a manual choke. That’s exactly what happened to us–well, not exactly. But sort of–recently when we went to replace a gummed-up, worn-out carburetor on our 1978 Camaro that wouldn’t stop giving problems. Instead of going out and getting a new carb, we grabbed a perfectly good Holley four barrel sitting on the shelf that we hadn’t used in a few years.
Of course, we’d forgotten that the carb was set up with a mechanical choke assembly. Instead of bothering with that we simply made a stop at our local speed shop to pick up one of Holley’s electric choke conversion kits.
When installed and set up correctly, an electric choke will get your carbureted vehicle up and running with a minimum of fuss even on the coldest winter mornings. Installing the kit was a snap, and the Camaro has been a pleasure to drive ever since. Our carb is the 4160 Series-style with vacuum secondaries and a single metering plate, but the steps involved are practically the same no matter what type of Holley four barrel carb you are using. So if you are upgrading a mechanical choke carb or rebuilding your old carb with an existing electric choke, we hope our guide will help.