Here's why:
* No factory provision: The 1977 engine block and intake manifold were not designed for fuel injection. There are no provisions for fuel injectors, sensors (like MAP, TPS, etc.), or the necessary wiring harness.
* Extensive Modification Required: You would need a completely new intake manifold designed for fuel injection, a fuel injection system (either a carburetor-replacement system or a more complex aftermarket setup), a computer control unit (ECU), a wiring harness, various sensors (airflow, temperature, crankshaft position, etc.), and potentially a new fuel pump and fuel lines.
* Complexity: Setting up the fuel injection system correctly requires significant mechanical and electrical knowledge. You'd need to tune the system to ensure proper fuel delivery and air/fuel ratio for optimal performance and emissions.
* Cost: The cost of parts and labor for a complete fuel injection conversion can easily exceed the value of the engine itself, especially if you're aiming for a high-quality, reliable system.
While it's *possible* with considerable effort and expense, it's not practical for most people. It's far simpler and more cost-effective to either rebuild the carburetor or, if you really want fuel injection, source a later-model engine (or a crate engine) that already has it.
