Trying to turn the truck into a hot rod isn't going to solve your towing issues. There's much more to consider, the biggest factor being payload, especially with a trailer that size. Then there's rear end ratios, brakes, trannie cooler, and the list can go on. If you are really serious about it, upgrade the truck
2013 F250 XLT
I now have a Keystone Outback, but I try to help when I can.
Bitter Gun Owner