Could you do a simple check for pressure coming from the tube from your intercooler to the carb hat (using your hand on it) while someone lightly loads the engine with brakes on? (farmer thinking)
Just did it with the neighbor helping. He put his hand over the pipe out of the intercooler, nothing. We detached the intercooler, he held his hand below the turbo outlet, as you accelerate it pushes air harder out the oultet. I connected the piping from the turbo directly to the hat, hit the brakes, put it in drive, and revved it. Still could not get it out of vacuum. I inspected the blow off valve, and it is shut tight, so I don't think that's the issue, and the little bolt hole on top as my neighbor suggested is also likely not the issue, as I plugged it and tried it that way.
My next thought is that there is an exhaust leak that I cant see that is just causing it to lose a tremendous amount of heat before it hits the turbo and therfor doesn't spool that fast?