1970 Ford Torino Carburetor

I have a 1970 Ford Torino and my problem is that the engine was sputtering when I would first accelerate like it was about to shut off.. So I took the carb of and rebuilt it, put it back on, and now when i start it up it is running rough and when i put it in drive it comes very close to dying. I have already adjusted the choke in everyway possible with no better result. What is wrong??