chesterino101

Morning all, im having an issue with low boost. Im new to imprezas so any help/advise would be much appreciated. Got the car a few weeks ago and was boosting to 0.4 when I got it, the vac pipes were connected wrong according to a friend ( he has a pulsar gtir). So first I removed the baily dv and replaced with a forge dv, which took boost up to 0.5 - 0.6. We then re-configured the vac pipes which is now as follows - turbo - t piece 1 to actuator and other to solionoid. Then solionoid to manifold I think. Result was no difference still .5 -.6. We then fitted 1.2mm pill between turbo and t piece. But now boost is down to 0.3 -0.4.

What am I doing wrong lol?
Thanks in advance