You don't need more boost. What you honestly need is a dyno tune and driving lessons before you kill someone. You are running more than enough boost in the car and you are going to max out the efficiency of the charger and have the fins start eating each other. You and Tim both need to learn to drive the cars as they sit then worry about making them fast after you can drive them as they sit. Tim has taken my advise and is doing well with it. Let's see if you can do the same. I'm not trying to be a dick but this is the reality of what you are asking.

Plus I'd do the brakes, I don't wanna come hunt you down cause you hurt Tim's sister in an accident.

Kris