You should be around 450-550 to adjust the carb. If you are a good bit over that you may have the throttle butterflies too open and by passing the idle circuit.
Well, I found one already, guy says its original but it sure looks in good shape for that. He wants 12500 for it. I am thinking about go to look at it tomorrow but I have no idea what I am dealing with.
Supposedly been completely restored a year or so ago. It runs real well. It is a friend that I have bought from before. I will get more specifics and post. He's asking 10000.
thanks