Video of Nemesis NXT shattering the 3km speed record.

What does this have to do with Power? Big motors, massive speed, Sexy aircraft? Everything!
"Jon Sharp flying the Nemesis®NXT® broke the 19 year old 3 Km C1-b record with a speed of 356 mph (573 km) today in front of a large crowd at AirVenture, Oshkosh, WI. The weather was less than perfect with winds gusting to 20 plus knots, yet the Lycoming Thunderbolt powered Nemesis®NXT®prevailed. “It was incredibly bumpy! I’m surprised by the speed. I thought for sure that we may have just barely made the record.” states Sharp, “I love that Thunderbolt engine!” The speed is calculated by averaging the four passes through the 3 Km timing gates. This is done by a NAA (National Aeronautical Assoc.) approved GPS unit that is placed in the plane. The 1989 record speed was 341 mph set by Richard Greer in a Questar Venture. The next record attempt is scheduled for Saturday, August 2nd during the AirVenture Showcase.
More at the Nemesis site