2. Throttle Body Spacer: A throttle body spacer is a device that is installed between the throttle body and the intake manifold. It helps to improve airflow and can result in increased horsepower and torque.
3. Performance Exhaust System: A performance exhaust system can help to improve airflow and reduce backpressure. This can result in increased horsepower and torque.
4. Spark Plugs: Upgrading to high-performance spark plugs can help to improve ignition and can result in increased horsepower and torque.
5. Computer Tuning (ECU): ECU (engine control unit) tuning is the process of modifying the engine's computer to optimize its performance. This can be done by adjusting the air/fuel ratio, ignition timing, and other parameters. ECU tuning can result in significant gains in horsepower and torque.
6. Supercharger or Turbocharger: Adding a supercharger or turbocharger to a 5.7 Vortec engine can significantly increase its horsepower and torque. However, this is a relatively complex and expensive modification.
7. Camshaft: Replacing the factory camshaft with a high-performance camshaft can also result in increased horsepower and torque. However, this is a complex modification that should only be performed by an experienced mechanic.
