Rebuild time

[Rtrucking]

To start off with this I want to thank rawze for the site and all the help I'm going to get on this and maybe a little a$$ chewing but being young and dumb and didn't know that much about the isx engines.....

A little bit on the truck it's a 06 Pete 378 with a cm870 565 hp 13 speed 3.70 rears ( started out 475hp with a 8LL and 4.56 rears and mechanically govner at 65 mph at 2000rpm) it has almost 26000 hours on it and only 229000 miles and runs really good but it doesn't have the fuel mileage, so I'm looking to get some good ideas on how to set it up, I'm in the oil field making delivery for chemicals and pull smooth bore trailer and iso trailer ( a 20' container with a 6400 gal tank in it and it's about as aerodynamic as a parachute) and using a liquid pump and a air compressor on PTO, with the little bit that I know on the truck it sat on location just idling 24/7 and running a different PTO setup,

Now the bad part ( I know a a#& chewing is coming) it is de-mandated I haven't had any issue with it but may need a little help with programming it and getting it right

Now the good parts, I have done the rods and mains bearings and injectors and the damper and a few little things but it's time to infame it