Don't let that scare u! its only 12.9:1 lol! runing her tonight on 93 and 2 bottles of Lucas octane bosster and she loves it....@m still on my very mild 23 deg tune (537rw)! came out to check out the fast and furious 3.....lol! may get 2 play w some rice! lol!!!! ps....soeey vut sending from my phone...