Has anyone who has done the PVA mod on the 4.8 Auto in the past changed it back to factory settings and had good results ?

I'm am trying to reverse the PVA mod but when I did it I wound out the grub screw a bit and now don't know how to set it properly. Does anyone know how many turns in the grub screw should have to set it back to factory position?

 

G'day mate,

Well the screw appears to be a stop position of max opening of the valve. Setting it up is described bellow ==>

Thanks Rumcajs your a legend. Now I've just got to figure out how to apply the appropriate vacuum pressure.

You will need one of these ==>