I have had the greddy kit on for about 2 weeks now; at idle my vacuum is 18-20. But under boost I'm getting up to 10psi under full throttle; I know the spring is an 8.5; I was just wondering if this is normal or if I have an issue with the actuator; the rod is as long as I can make it with no preload. And using a bike pump I witness it start to open at 6 and it opens more till 8. This is my first turbo and I'm just wondering if this is something I need to fix before I go to the Dyno on Saturday.