Me and my dad are planning on purchasing a project truck. I think it will be a 12-valve cummins. What year of Dodge has the most potential with power upgrades. We are planning on 600+ rwhp. We don't even have a truck yet so any pointer would be helpful, like should we go with auto or manual tranny? Is one year of truck better for any reason. What am I looking at spending to get to 600, 700, 800 hp? I have a 97 Powerstroke and I know what it takes to get to 400 hp and its an expensive and long road. I have heard its much cheaper with a dodge. Let me know, and thank you for your help.