Can someone help
 

I have a 03 duramax lb7 an I'm runnin a ppe hot+2 an the truck will barely even smoke, even on level 4 and I'm wondering why that is.

Frankly, low fuel to air ratio.

Check your fuel rail pressure while gunning it. Clean the maf sensor.

PS, anyone with the power, this thread needs to me moved into the LB7 performance section:choochoo:

Ok thank you for the info , and my apologies