2500avalanche
Well-known member
So I have an issue right now. Last fall, my truck would get to 16lbs no worries. During the off season I upgraded to an ATR upper (yes, very minty - thank you to the person who sold it to me!). Now, I can not get the truck over 12.6 boost. No clue why. I have adjusted my forge wastegate thinking that as it, and no matter how much I adjust it. I still get 12 PSI on ALDLdroid as well as on my boost gauge.... Very confused ANy help would be great