Hello, I'm new to the small truck side of this forum, but I have a question about Dodge Automatics. I have friends with tuned 6.7's that run really good and get good MPG, but they all have manual trans with beefed- up clutches. I would like to do the same with an auto. What can be done to an automatic and how $$ expensive is it to hold 500 to 600 hp? If this has already been flogged to death, I apologize, but I didn't find much on a search.