Guidance requested for ISX

[BlueSpruce]

Truck has 3.90 gears with an 18 SPD trans. Engine was a Cummins factory reman so I had no control over anything associated with it's build specs. I presume it was done to factory specifications. I will admit to running at too low an rpm based on what you are saying and will avoid that mistake from now on. I've been running between 14-1700 but when I get above 1700 egt goes way too high. I am having the exh manifold drilled and will have the pyro probe out there so I can see a more accurate exhaust temp. I will work on getting the necessary items to copy the file and send to you.

Thank you for the advice and help.