hit the recall button and it will show you 02's on the left and your knock retard on th right and when you go WOT look at the knock retard and you do not want to see more than 3*(or 3.0). if you do and you are running 93 octane i would let off. and your 02's should not go below 7.50's at WOT. whenever you go WOT your SM will automatically record the lowest 02 and the highset knock, after you get done with the blast, while the car is running hit the recall button and it will show you what you need to know. also, if you fail to keep a close eye on the SM you might find yourself pushing your car home, but if it's tuned well and you keep an eye on it you will be good to go. HTH
