My competition would have to say that the mod does make it faster. The track officials did a complete tear-down including fuel testing by the end of the weekend. Listen to the video near the end when the lady says "HOLLY COW", thats exactly when the kid opened the throttle the rest of the way, when his dad gave him the signal.
The final win (not on video) was way better because the throttle was opened even from the beginning of the race. Several people still think we have a hidden NOS system or something.