Vibration
The vibration wasn't teeth chattering but noticable enough that I could feel it good but approx. 100' out it went away everytime at about the same point and the truck would be smooth except for a steering issue that I had. It was a feeling I have never felt before and just didn't feel right. I may jus be overreacting to this whole new big block build but it just didn't feel safe on take off but after approx. the 100' out it felt real good.