Not starting, tries to turn over. Will not idle down.

Recently changed out the steering column on the truck since the directional were old and needed replacing, truck was fine at this point. After the install, the truck would not start. If I pour fuel in the carburetor then it will start just fine but it will not idle down and just sputters out. If you pour the gas in the carburetor and start it and then apply the gas pedal and keep the engine revving up it will run just fine. It only stalls out if you don't hit the gas pedal, and it wont start without adding gasoline into the carburetor.