When dealing with aftermarket applications, any printed material is going to be subjective. It depends on ambient temp, your car etc etc etc.
If it is a cold morning, I open and release the throttle to make sure the choke has set. Then I adjust the blade until it is closed. Start the engine and test drive. When it is at operating temp, open the air cleaner and make sure the choke is fully open. If not adjust as necessary, or adjust as necessary depending on the drivability you experience.
If the car is already warm and the temp outside is cold, set the choke to where it is just fully open. Then when the engine cools it should choke back fully closed.
Basically it is going to be a trial and error solution based on how the engine behaves. You may need to reset the choke in the Summer or in the Winter.
I have had problems with the electric choke on the Weber heating up too quickly. I put a couple of resistors in line to reduce the current/voltage to the choke element and slow down its openning.
Doug
