You get to pull to 6K rpm because you changed your cam. If not, you run out of breath around 5500 rpm. Change to stainless steel intercooler piping, you get much better response especially on warm afternoons.
And also, time for TD05 bro... hahaha... *poison*poison*
My ac/fuel pump rosak that day and some bugger on a motorcycle stop just to help me (yea rite...) at the side of the road. Then he said the ac pump spoilt and asked me to change it. He...