Dodge Upgrade questions
 

Hey guys I'm new to this site and have a few questions about upgrading. I have a 2003 Dodge, 3500 4x4 with the HO engine and 6 speed NV5600. MY truck is a daily driver, pull a 30' travel trailer a coupl times a year on vacation and I have a low boy trailer I use to pull my Polaris Ranger Crew and hunting stuff with. Oh yeh, light to light race every now and again:tu:

The truck has a Dr.Performance 120 hp box and 4" exhaust from turbo back. No other mods.
125,000 miles on the truck and I smoked the clutch the other day.

I would like to get rid of the Dr. Performance box. but get to 500 hp.

What Clutch would you recommend (I was thinking about going with a Valair single disc)?
I wanted to go with a SMARTY and add injectors, what size and make injectors do you recommend (if possible I'd like to increase milage a little). Will the rest of the drive train still be safe? Is all of this an unreasonable fairy tale? :s:

Problem Child