Stock 1G BOV upgrade

[DoughtCom]

I'm getting a MBC, I had one but it was a weird model so we didn't install it and I wanted the ball spring design S2kracka posted a link to. I should be getting it tomorrow.

The only thing that's weirding me out is (it could be my imagination) it seems like my vacuum has gone down like 1-2 PSI on idle, but I'm not 100% sure, that's not a sign of burned up exhaust valves is it?

My next step is to get an EGT gauge but I need to find a cheap exhaust manifold somewhere, maybe ported too.