750 Holley electric choke question

Never have run chokes any anything. Back in the day, no problem, let it sit for a month, pump the gas couple of times, fires right up. Then keep foot on throttle to keep it from dying until it warms up a bit (or just drive off; once you get the rpm's up just a little bit, it would run fine).

Those days are gone, as we all know. Today, with any sitting at all, the fuel in the carb and in the line will disappear so if you don't have an electric fuel pump, it's either prime the carb or it's crank, crank, crank, crank etc, etc, until the carb gets enough fuel in it to start the car.

So, noting how easily my 56 Plymouth started after sitting with its electric-choke equipped Edelbrock carb, I got an electric choke kit for the 3310 Holley on my 65 Barracuda. Adjusted so that it is fully closed when dead cold, it now starts after just a few cranks. Problem is, so adjusted, it doesn't open all the way when warmed up. Adjusted so it opens all the way when hot, it doesn't fully close when cold, and partially open it really doesn't help.

Just how open is the choke flap supposed to be when the motor is completely warmed up? Maybe it's not supposed to be fully vertical??