well set the shift points to 6000 1-2 and 5800 2-3. watch the ltft on the predator. see wat they go to when at wot. if they are neg then remove fuel. if they are pos then add fuel. be sure to drive it around at least 50 miles to let the pcm take in the changes. add timing till you get kr. then back off one. get a nelson tune man and you will be very happy. did you already order the coils. is it for the truck?? they arent really needed since the factory coils are bad ass already. is this a 99. if so get allen to send you aN 02 PCM FOR IT. 99 WAS KNOWN FOR FALSE KNOCK.