6000 won't get you much of anything...
If you want the most power NA you need a stroker kit and cams would be a start..
But right there is 6k without any labor
You Can add header and test pipes or HFC..long tube headers
Ideally you would need double and more the amount to build the engine
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Tuned by (Seb@Specialty-Z)
2011 G37 Cam'd FBO 347whp 280wtq Corn Fed 4.08 Gears
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