i just ordered a gt3071r with a tial 38mm wastegate.... im sticking with the bottom mount stock manifold and my sponser (enjuku) explained that i should weld the wastegate to the manifold because precision does not make the gt3071r with internal wastegates on a t25 flange. any care to explain how this is going to work?? thanks

 

This is what they are talking about. The only difference is this is my manifold for a RB. This should give you some ideas though. Good Luck