hi peeps can anyone shed any light on this strange problem ive got ,i took the head of my rs turbo to fit a stage 2 head and cam built it back up. its starting and running ok but im not getting any boost pressure when i rev the car the boost gauge goes up to the zero but no further the actuator is connected and so is the pipe from the turbo to the actuator, has anyone come across this ,any help would be great .could i have something on the wrong way? it was boosting fine before removal and you could hear the d/valve even when you revved it on the spot ,cheers in advance