wants to die at 4500 rpm at WOT

[iceminion]

you need not worry about overboost if you actually are somewhere between 12-15psi at WOT.

Bad gasoline will cause excess knock, your engine will pull timing, it will feel like the car is falling on its face, this means your knock sensor is working.

I know they dont teach you much in the Gavy, but I will share some Army knowledge with you: Get a datalogger and see whats going on during the malfunction.