I recently went on another sledding trip and halfway home my truck would not get over 22-23psi. I usually see 33psi up big hills with a max EGT of 1000-1150. Even running around town i can't seem to get what i usually see and the EGTs are creeping up to 1250ish which is not normal for my setup. Any ideas ? I was thinking boost leak but everything looks good. Could it be the S&B air filter ? Its a little dirty but not plugged ? I run a Outerwares on it which was dirty. Ideas ? Suggestions