whats up with them damn clearances? **** has to be the noisiest thing i have ever heard. am i crazy? .007 intake .009 exhaust? start at TDC, do cyl #1, then rotate 90*, then cylinder #3, 90* then #4, 90* and #2? damn. i dont get it, why the hell would it be so damn loud, sounds like a sewing machine... d15z6.. mini me on d15.. think the shorter head hieght makes a difference on the noise? help.