In the spring of this year, a guy from Florida (redline 06) took a 08 350 with 129k miles on it & turned a number of 12's & a low of 12.823 & that time is posted in the 07/08 bolt on section of the my350z.com top 25 list. Not bad for a worn out engine
Since I don't know what kind of new Z is coming our way, I may get a used low mileage 2012 370 automatic. As much as I love manual trans & find it easy to produce great times with it, I'm getting to old & tired driving 3 hours each way then changing all four tires/wheels twice. That adds up to 16 tire changing
I may just put M/T street radials on an automatic 370z, just drive to car to the track & do NOTHING except have coffee before drag racing.
It won't be as quick as my 350z, but if I add 2 more mods, I'll be able to do 12.7's 12.8's without a problem. It will be a better car for bracket racing than my faster 6spd. manual.