Did you follow the directions exactly for the turbosmart mbc? Definately turn it down a little. Mine is at like7 clicks and Im at about 18 psi.
What do you mean in line? The n75 should be bypassed completely- except for being plugged in electronically with no hoses going to it other than it sitting in the turbo inlet hose.

 

When I say inline i mean "the way you told me to hook it up" hahaI double checked all the lines and they are all correct. I will lower the clicks to seven and then see what happens. def. a bigdifference in the way that it was boosting though... I'lllet you know how it does...

 

How did you end up getting the stock hoses onto theT piece's small nipples[8D]? I just used a short piece of the silicone hose that came with the mbc, slid those onto the T piece nipples[8D]and then squeezed the stock hoses over those. It worked out perfectly.

 

yeah i did the same. you pm'd me that advice and it made for a snug fit...