Ran with my manual choke wired open for 20 years. Just had to pump the gas first and pump it cold to keep it running. In a minute or two it was ready to go.

But that sounded bad when I took it on vacations and would start it in a campground or something, everyone thought the car ran like crap when they hear me start it in the mornings.

So I got cable and hooked up my manual choke and it works good. Car starts better, just have to stay with it to adjust the choke as it warms up.

I fouled plugs letting it sit and idle with the choke on, I burned them clean after driving it for while.

It's not necessary the choke, but sure helps during the cold weather.