I dont think that's possible with the carb set up. I have that engine in my durango. My understanding of how it works is that it basically shuts not only spark off to the cylinders but turns the fuel injectors off. If you try to do it with a carb conversion on it, the closed cylinder intake port is still gonna get filled with fuel, thus flooding that cylinder when it does open back up, plus the carb cant automatically adjust to run leaner, thus flooding the other 4 cylinders. Plus the whole set up relies on electronically controlled lifter and an electric throttle position sensor/control. you have none of that with the carb set up. there's also a special sensor per cylinder that takes into account the oil pressure per cylinder. Only way to make it work is with fuel injection.
