Attention: TDR Forum Junkies I was comming back from a trip towing my trailer(12,000lbs,) and noticed my boost seamed to be running higher than normal and the egt's were lower. Before the trip I installed a new overflow valve but it seamed fine on the way up. The truck actually runs rougher at an idle with the new overflow valve than the stock one. The power seamed low under normal driving, it felt like I had to really stand on it to get any power then the boost shot up(30-35lbs) but the egt's still didn't get as high as they should. 
