[Nezil]

Obviously, octane is a possibility, but there are of course other things that it could be. I have considered IAT, but my timing issues start when the IAT is only 90 F.

I have also considered HPFP, but the lowest pressure throughout my pull is 2,465psi. It does dip a little, but not massively. Could this be enough to cause issues?

There are no knock detected points during my pull, which I was seeing even with the stock tune on straight 91 AKI pump gas. That's a good thing, but could my issues still be related to California gas? Even with race fuel mixed in?

Is there anything else I should be considering? I'd really rather not change spark plugs or run octane booster, but I could perhaps increase the ratio of race gas or try adding some E85?

I imagine this timing behaviour isn't going to damage my engine, I'm just loosing out on a fair amount of power and torque, is that a fair statement?