Merry Christmas all! Got a predator for Christmas and had some questions. First, I set the revs per mile at 576 for my 35s and it was off by 5-7 mph. What do you think would be right? Second, is I noticed the tranny is shifting around if not under five at wot. Tuner says it is set to 5575? Any help is greatly appreciated

 

1. Fine tune it with a GPS.

2. Set the shift points at least 400 rpm less than your rev limiter.