Related Clues:

• Crank (up)
• Increase, with "up"
• Show off one's Harley, in a way
• MLK Jr., for ex.
• Gun, as a motor
• Clergyman's address
• Minister's nickname
• Turn over, as an engine (Abbr.)
• Gun at a red light
• Gun in a garage
• Get the engine humming
• Amp (up)
• Give gas to, as an engine
• Go "vroom, vroom"
• Gun, as a engine