QuadraJet 4 barrel way too rich!!!

[rdauphinais]

Well, so far with my k3500, I put gas in it and put a little down the carb throat and I got it to start. It is running very rich, there is constantly gray/black smoke coming from the exhaust, and I have no power. The person I bought it from told me that the carb was messed up and they were right What could it be? Stuck float, the float sank? Choke not adjusted properly? I know the previous owner did some work and I'm not sure if the choke was removed. Any help is appreciated. Also one more thing is that this morning, it was 18 degrees F and the truck started up with two revolutions. I'm not saying that is a bad thing but I'm pretty sure I should have had to pump the pedal a little.