12.7 Detroit need a new turbo (upgrade?), hauling light and best mpg?

I believe it’s 4912. I’d have to check 1999 BK engine

 

If you had the Serial number and providing the engine has the cam from stock i can look it up

 

You don't have to drag race, but at least accelerate reasonably. There's nothing worse then getting behind a driver doing 30 MPH on the on ramp, because he is either eating a sandwich, or just driving like a fool and accelerating super slow for either fuel economy or....

 

You have to consider, being Loaded heavy, hitting every gear just right, not tearing up things. Big difference from being light, and with an automatic. They pass Me all the time coming out of the scale. Takes a while to get mine wound up. Then I pass them. Lol

 

I take off slow and steady like James if im light or heavy. Macks were never fast off the line to being with. Once i get moving you won't see me again

 

J no

 

Hey guys need some help i just installed turbo from k31 to 171702 do i need tune or just fine thanks

 

did this engine have a previous tune or is it stock program ?

 

I just bought the truck three months ago and ididnt know