Blip only works on down shifting dude. if your shifting slow enough to have to rev match the next shift while drag racing your doing it all wrong.. Your tach shouldnt MOVE when you shift. I had it down to where i could keep the car hammered the entire time down the track and from the time the clutch was disengauged to when it was engauged in the next gear it would raise mayby 50rpms before dropping to the next gears rpm. That fast
