Edelbrock Performer RPM

I agree with rocco on this one. I know "New York cold" and "California cold" are pretty different, don't get me wrong. But I have plenty of below freezing starts on the Eddy air gap on my my 340, never had any issues with it. It fires immediately on the first crank, dies before the electric choke kicks in, and runs 99.9% of the time right off the 2nd crank. That's with a street avenger carb with an electric choke.

But yeah, I'm talking less than 32*F and usually more than about 28*F, it usually isn't colder than that here when I'm trying to go to work. So, if you're talking less than 28*F, my comments may not apply.

Do you have the carb sealed away from cold air from outside?
How long is warm up? (Ball park will do.)
Is the car fully warmed up to operating temps with hot air blowing inside the cabin?

You say it dies before the electric choke kicks in? At the risk of sounding stupid and/or insultive, do you pump the gas pedal once before you start it to set the choke?

And yes, I did say cold. Operating temps still come (relatively) quick even at 32*'s. I only consider 32*'s cold when the summer ends and it dips down there quickly. At 32*'s it is possible to find me fixing cars on my concrete garage floor.