Mk2 golf g60 vacuum for servo

Hi I have an issue with the vacuum for the brake servo ,it’s connected to the inlet manifold above where the isv sits ,is this correct ?

 

So no servo under boost? Does not have something like the 1.8T?

 

Thanks for the reply’s ,I was getting positive pressure from the inlet manifold,I think it’s the idle screw ,throttle valve which I have replaced ,but didn’t adjust and was getting stuck