Hey Doc, you should notice a significant difference in the way the throttle behaves and notice that the delay between throttle movement and the engine taking off is gone. If you're not seeing that kind of change, you may have a bad SprintBooster. You might even want to try unplugging the SB and flipping the connector over (180 degrees). It can plug in either way (bad design Mercedes!).

The flip _shouldn't_ help. In fact, it should cause you to have no throttle at all. But it's worth a shot. I've heard both results from having the SB flipped - no throttle or no SB.

Hope that helps,
Tom