11:5? That's like 2.2:1. Must not get very good gas milage

11:1 or 11.5:1 seems to be a pretty safe to start. That's what I'm going to be shooting for at maximum boost(12 to 15psi). I think there is more power to be had with the timing beyond that. I know at the O2 targets I have I get zero ping. Needs more timing! EGT look pretty good at the level too.

 

I'm shooting for 12.5:1 to till about 5psi, 12:1 higher than that, then 11.8:1 after 6500rpms. 15:1 cruise.

 

Hah!

11.5:1

Sorry. :gay: