I was just wondering if there were any books on how to tune our diesels. I have made some minor modifications to existing programs but I am interested in learning more about how each table affects performance. I realize this could be done with logging but I would prefer to learn with out subjecting my truck to that kind of abuse. I have looked online but it always seems to draw a blank. I know there is a EFI university but it is not feasable for me to travel to a class that takes several days. Any help would be appreciated