How do you modify a L28 engine?

To modify an L28 engine for improved performance, you can start by upgrading the intake and exhaust systems, such as installing a high-flow intake manifold and a performance exhaust header. Consider adding a larger carburetor or switching to fuel injection for better fuel delivery. You can also enhance the engine's internals by using forged pistons and a performance camshaft to increase power output. Finally, tuning the engine's management system ensures optimal performance and reliability after modifications.