Final answer:
Direct injection injects fuel directly into the combustion chamber, offering improved efficiency and performance.
Explanation:
Direct injection is the fuel delivery system that injects the fuel directly into the combustion chamber of an engine. This method allows for better control over the fuel-air mixture, resulting in improved fuel efficiency and performance.
Port fuel injection involves injecting fuel into the intake ports outside the combustion chamber, which is a common method in many gasoline engines.
The carburetor system mixes fuel and air before entering the combustion chamber, unlike direct injection where fuel is sprayed directly into the chamber.
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