[davek]

I have a 99 ext cab dually with twin disc clutch, injectors,afe intake, fass fuel, smarty, and hx 35/40 turbo. What else can be done and still keep it in stock class AND be a daily driver?

 

[SmokinDiesel]

I have a 99 ext cab dually with twin disc clutch, injectors,afe intake, fass fuel, smarty, and hx 35/40 turbo. What else can be done and still keep it in stock class AND be a daily driver?

What size injectors?

 

[davek]

I put 10's in it. I was told any bigger might be too much for on the road.

 

[ddperformance]

we have 5X14 in a 12 valve daily drive gets 17mpg with 62mm turbo and 5x15 in 24 gets 16 with 64mm turbo both trucks drove daily

 

[ddperformance]

also a cam some head work i know a good machine guy thats done alot of cummins heads and rpms how poor boys run with guys have deep pockets

 

[BossHawg600]

tracton bars would be next if you dont already have any. Im guessing you have 10 hole injectors, which are prettty good and should do you fine. I don know a whole lot about the electronic stuff, but another box would do you realy well. All in all, you sound like you have a good set up, but that turbo is your limiting factor at this point.