i don't think that an electric vacuum pump would keep up with it. i bet if you move it farther down the exhaust tube a bit then the pressure would have disipated some and work just fine. plus if the angle is correct then it will creat its own vacuum in the evac system that will keep up because its on demand from the engine.

best thing i could say is give it a try and see what happens, there are turboed gas vehicles that run these also so it will more than likely work.

 

I know of a few guys with 6.0's from some of the forums that have done the CCV mod and done this into the exhaust. I wouldn't think we'd have to worry about the vacuuum as much as we would exhaust pushing the oil back in, especially on a turbocharged application? It's all about the angle...