New Manifold Fitted And Less Boost?

[Mike_trx]

Hey guys, just fitted a new exhaust manifold ( 4efte by the way ) as the standard job was cracked. I went for the cheap replacement option and after a problem with autobahn88 not being very customer focused I ended up with a japspeed tubular blah blah...by the way this thing doesn't fit well on my car, exhaust is pulled to one side a bit now! So ive fitted this myself, made sure all bolts are checked over a few times after warm and even sealed the gaskets with a good exhaust paste to make sure no leaks. HOWEVER! I now only boost to around 0.65 bar, where as before it was around 0.8 or just below with a bleed valve fitted ( evil things I know ) I have tried turning the bleed valve to up the boost but its just not going any higher, Ive also noticed the dump valve not dumping as loudly and the chatter noise at lower boost stops really quick, like the turbo is barely spinning a speed.

I have checked all the exhaust joins, bolts, gaskets are good but I cant work this problem out. Its a standard actuator which is getting a bit soft so that'll be replaced with an hks job in the near future but it seems a sudden problem, since changing manifold its just not right. Any ideas or suggestions welcome!

Mike