Is this for perfect conditions? I just plugged in 3255 weight & 225 whp & it came up 14.193! This the supposed n/a 5sp hardtop weight. Gianttomato obtained that hp figure corrected for Aussie vs US dynos. HaloZ posted a link with 14.2 posts for the best n/a Z32s. Maybe we need a correction factor for human error & the like.