I just turbocharged my B16A motor to 7 psig, however whenever it gets up to 5000 rpm it begins to miss and holds back. The cam switch over is adjusted to 4800rpm. I am using an after mart managment system (Link) it shows the fuel is slightly rich. What do you think the problem is?

 

It's either one of two things. Air/fuel mixture or timing.............do you have an stand alone or are ya runnin the stock ECU?

 

I have a stand alone system.