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*
hope you all can help me on my built, i wonder what bearing to use on my stroker built. i have VR4 6 bolt block, 4g64 7 bolt crank and i want to use back vr4 conrod. for main bearing any different...