Here's why it's impractical:
* Engine Management System: The 1996 350 relies on a sophisticated computer system to control fuel delivery, ignition timing, and other critical functions. A carburetor eliminates this system entirely.
* Intake Manifold: The intake manifold designed for EFI is fundamentally different from one designed for a carburetor. You'd need a completely different intake manifold.
* Fuel System: The fuel injection system includes a fuel pump, injectors, fuel lines, and sensors—all incompatible with a carburetor setup.
* Wiring Harness: The wiring harness is extensively linked to the EFI system. Modifications would be extremely extensive.
* Cost and Complexity: The cost and labor involved in such a conversion would far exceed the value of the vehicle, especially considering the readily available performance parts for fuel-injected engines.
While technically possible with significant modification and expense, converting a fuel-injected 350 to carburetor operation is not a practical or recommended project. It would be far simpler and more cost-effective to find a carbureted engine if that's your desired configuration.