Help me get into the 12's!

I need 12's before going with nitrous I should be fairly close too.. Here are my mods and dyno

2001 GT
K@N
LT headers
Magnapacks
4.10's
Chip and Tune
O/R X-Pipe
Slicks

252 RWHP/290 RWTQ in 90 degree weather. I have not been to the track yet-But I expect low 13's with this setup and practice. I just need a little boost before nitrous!!

Much thx!