Small business is America's most powerful engine of opportunity and economic growth.

Despite being given a more powerful engine, it was not a success.

It may need a more powerful engine to deal with that weight.

Its powerful 21.2cc 2-stroke engine can power through large jobs.

The powerful new engine gave the final design a road speed of 30 miles per hour.

How would you begin the design process for an engine this powerful?

The second series had a larger and more powerful engine.

They are the most powerful engines in the country yet.

A new, more powerful engine will not be ready until next year.

Suddenly there was the sound of a powerful engine outside the door.