hey guys im buyin a GTR n dis guy say dis r32 gtr is got a r33 gtr engine n box,n how can i tell is he talkin shit or not n da 32 is got gt 28/60-5 turbo n engine rebuilt.......is runing 21 psi making 328kw at all 4. just want 2 noe is 21 psi is 2 much n safe??? thanx 4 ur help pples