i need some help answering a question. i am having a conversation with a self proclaimed Cummins mechanic thats its impossible for a 06 5.9 Cummins with a smarty so6, cold air intake, 90% over injector tips, and stock turbo to hit 42 pounds of boost. i have seen it happen once but the guys doesnt want to take my word for it. so i m hoping that some of yall can prove him wrong