The old guy we got the Quadrajet from said it was off a "Police Interceptor", but then everything he had was off a Police Interceptor. The number crosses over to an 82-87 Dodge & Plymouth 318 car.
It is the feedback carb, (picture posted earlier) and we intend on using it on my son's 331 Hemi. I would like very much to figure out a way to make this thing work. I would not be opposed to having it "stick" at the midpoint between rich & lean, if we can determine how to go about that. The carb looked pretty good, and I put a kit in it, but must have messed that up because we have a loud whistle at idle. I'm going to pull the carb back off and see if I can find the whistle problem, I'm hoping its not throttle bushings. Gene