I have a gsr turbo and it pulls real hard from 7 to 8 grand is it because of the jg i/m should i go with a different intake if im not going to rev any higher. Let me know.

 

Difference in runners will make all the difference when it comes to where your intake manifold makes peak power. Some manifolds are designed to make power more midrange, and some up top. Thats why they make manifolds for all motor and turbo. I would keep it, unless you want to sell it to me.