Originally Posted by RS Bowk

Sounds to me like uve either got the worng actuator or spring in it. If its a serviceable type (ie allen bolts to unscrew it) then it could be the wrong strength spring if its not( ie sealed garret item) then this is prob not the problem.

Have you set the actuator up correctly? You must have a boost gauge its the most important tool when having a turbo car.

If all this is done then you may have the timing slightly out. If it is, you will probably need to set the boost again after timing the car up.

I would persoanly go for a Autometer Boost gauge. Give Ian @ Racetek a call: 07721 078371

HTH