Ok, here is the delma. I have a 04 3500 CC 4x4 dually 6spd on 255x70 22. 5" with 4. 11 gears and a jake brake. It has a bully dog power pup and a edge ez stacked right now with 5" straight pipe and a clutch( i also use an AFE drop-in). I have a limited budget and my truck is GREAT as is! But, of course I want more! I tow all the time just below 26k!!! I just got a new T-320 Bobcat 10k, trailer 4-5K, attachments 3-4k, truck???? (what is the weight of these things???) 8k? So, I am always pretty heavy! But, I want more performance loaded and unloaded. I know I need some fueling mods first and foremost! I was going to fab up some sort of larger diameter line with a pusher pump and maby some larger fittings. How about that new dual feed line kit? Any word on that and towing applications? I assume that I will just be able to run my boxes on higher settings right (currently on edge about 40-50 and bully dog on tow 70?)? So, now I am going to need to cool things down alot! What turbo should I use, and I really can't afford a set of towing twins right now. There have to be some heavy towing gear jammers out there that can help!!! I really appricate all the help in advance!!!