My carb choke plate is odd
Picked up a Autolite 4100, 1.12 carb that supposedly belonged to a 59 T bird. The only number on the carb is 5752309 which I believe is a correct carb for my 352. The only thing I can't identify is a choke plate anomaly. It has a swinging plate inside the larger choke plate. Anyone familiar with this? Hope I can still use it but don't know if that will affect setup. I have pix if that will help.
Any help will be appreciated.