Sounds like the choke is working well based on how you start the car from dead cold.

The choke set-up is stepped, so you should get the full high idle and then if you tap the pedal after about 10-15 seconds it should settle down to around 1200-1300 RPM.

There are adjustments available for the choke and the stepped idle (choke cam, yellowed plastic piece).

As far as flare up when it's hot, that never will happen, just the nature of the carbureted engine.

I'd say, if the car sits for less than an hour after it's been driven, don't step on the pedal at all.

Anymore than that and a quick squirt should be all it needs. You may be flooding it slightly causing your issue.

The hotter the day, the more fuel will evaporate from the carb bowl, especially with the crap formulated gases available now. This can also cause your issues.