A new motor was put in my 74, it has a 750 edelbrock with electric choke. The choke will not close the choke flap when engine is warm or after a quick blip of the throttle after the engine has been ran for a little while. It idles at 2k RPM. Any ideas on how to fix this? It's not likely that any of the components are broken as it's only about a month old. Also, I checked and there is 12V going to the two leads on the choke so that is not the problem.