One of my clients owns a HD Street Glide. With free labor from his son who is a HD trained mechanic, he dropped in a HD 120R motor, HPI throttle body with fuel injectors and a Thunderheader. Before the motor switch, his bike on the Dyno did 101 HP and 105 torque. He said the new motor on the Dyno yesterday turned out 138 HP and 142 ft lbs torque. Seems like over kill to me. Thoughts on when enough is enough, or in this case maybe too much???? I asked how he thought it would handle stop and go in the heat--response was that no HD motor will do well in stop and go traffic in the heat. I would think meltdown....