cant boost over 6?

for some reason i cant boost over 6 pounds (the greddy wastegate allows that stock)....even when i change the boost and duty on my AVC-R to 8 or 10 it wont boost past 6....it looks like everything under the hood is fine...no pipes leaking or anything i can tell...i cant tell if i have an open wastegate or not..i dont know what to look for...any help would be nice.....

have you tried adjusting the nut on the back of the wastegate? maybe thats whats limiting you from boosting past 6. good luck keep us posted of ur progress.

ive tried, im thinking it might have to do with the connection of my AVC-R to the wastegate...this sucks