I was just wondering if this happens to any of you, I have a 58% STS form Maddog, and I was just playing with power shifting for the drag races on sat here in cali, and for some reason it wont let me power shift into 4th gear, all other gears are fine. I go to blimp the clutch and it wont let me go into 4th, now when I dont have to high of rpms it shifts great. I even tried it when I was getting on the fwy from 3rd to forth just got into the throttle a bit and still no going into 4th until I slow it down a bit.

 

sounds like what was happening to me when my flywheel was in pieces.