I have a Kent Moore timing setup on the way, so I was reading the tech article on how to to set the timing on our trucks. The article mentions how some people prefer to set their timing at 9.5* BTDC rather than 8.5. What’s the advantage to this? Does slightly advanced timing give more power, or is this intended as a buffer for the timing slowly becoming more retarded as the injection system wears out? Or is it just people adapting to low-cetane fuel?