The engine is misfiring I changed spark plugs

Hi, I have the truck listed above crew cab dually with the 454 7.4L. And I start it up it runs really rough, and then just shuts off. I touched the left side exhaust manifold and muffler and they were both cold as ice as of that side of the motor is not firing. I have recently ran it out of gas maybe it sucked some stuff into the carburetor? I have replaced distributor cap, rotor, spark plugs and wires, and coil. New fuel filter last year. I have no clue why it is doing this I wanted to surprise my grandpa with the truck because it was the first truck he ever had! So it is a pretty special truck. Anyways would really appreciate some help don't know what it is doing. Ran excellent parked it. Went to go drive it the next morning and just had no power at all and stalled out on me a couple times.

It is hei it has recently had cap, rotor, coil, plugs n wires. I ran it out of fuel recently and it ran like this since so I might have plugged the carb?

Sitting over night did nothing. I just went to drive the next morning and it ran out of gas. I kept trying to start it because my fuel gauge said I had half a tank but I banged on tank and it was right empty. So I carried a jerry can to it and filled her up again fired it up and it was only running on the right side of the motor the other was ice cold. Yes it started running like this as soon as I ran it out of gas.

Okay, I will check. Thanks!