depends if you want to run it hard or run it safe.

safe? 11.5:1

hard? 11.7:1-12.0:1

if youre planning on running it hard you CANNOT go without watching it a lot because one blip of it going just barely too lean then bam a piston is gone. you need to make sure it is tune right for the weather. i dont suggest running it that lean without some sort of intercooler/meth.