you will be fine running a leaner tune if you up your gas grade. You just dont want to detonate. That is easily preventted (to an extent) by running 89 or 93 octane.

 

heck it is fine as is, it isnt too high up at 14-14.2 up to 7k rpm. And 13-13.5 ish for the rest is not what I would call lean. much higher compression motors are running 14 for DD stuff. I just thought people might be curious. Ill Scan another dyno in. But nothing is running hotter and I have pounded it up to 14k without issues. Either way, it seems as if I have one of the best performing motors at 15k miles. All this from getting sick of smelling of unburnt fuel. Fact is, I was running rich period.