Holy cow, slim, you are alive, haha jk, I haven't visted the SS forum in a while, I'll have to clean up my inbox over there, I never have received notifications when I get a pm or a reply to a thread, hmmm.

It must be your headers and cam. I know of a built C5 and stroked engine, he's running a Radix and he can only get about 6 psi with a 2.9inch pulley, if i remember right.
Add heads and a tougher cam and you'll see even less boost.

That's what I think, but feel free to add some opinions guys,

It could be a slipping belt as well, or a combination of both

thanks,

allen