im currently lookin at a 6.9 and i was wonderin what all can i do it to get the most power and performance out of it?
i am completely lost when it comes to these 6.9's

 

add turbo, turn fuel up, intercooler, bigger injectors, custom injection pump....... all matter on how much u wana spend.

with a good running properly timed pump, bigger injectors, and a turbo u might be able to get 225 hp and around 400-450 ft lbs.


i am making 161 hp and 320 ft lbs at the rear tires. i have pump turned up a little bit and ats turbo.

 

whats the highest realistic horsepower i could reach with all that you said?

 

about 250.