Phil put a 1mm to 1.2mm in the c maked pipe and either 3mm or just pull the restrictor pipe out the r maked one,
On the 1mm one buy a brass bar either 6mm or 8mm depending on what size the pipe you are using from turbo make sure this is a tight fit, A model shop should have this in and then buy a 1mm and 1.2mm drill peice and a 3mm drill,
Then adjust boost on actuator arm min preload half a hole of pressure to max 1 hole this will give you your boost you are craving .

Mark