Greddy Profec B-spec II can't stop the boost spiking...
 

I just installed my boost controller and just having it set to the minimum settings it boosts around 12 psi in the transition and around 10 psi primary...Any ideas?
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Did you take the plug out of the unused port in the valve unit?

Post what settings you have entered and it will be a lil more helpful. Also, how are you tuning it? Only use third gear pulls and also pay attention to outside temps.