SCT 93 Octane Stock GT Tune - Engine Knock

I just flashed my stock 2004 GT last night to test it out with a 93 octane tune

It seemed to be performing well, but I picked up some sort of sneaky suspicion that there was some engine knocking. When I pull it with low RPM in 5th, my fear was confirmed with some clear, loud engine knocking.

Now here's what I hope is happening. The octane in the tank is around 91.5, since there was about a quarter tank of 87 left when I put 93 in. Does anybody know that this will happen if the octane isnt exactly up to par? I sure hope so, and that there isnt some detonation or pre ignition problem.

Now this was all overshadowed with a loud creak in my steering, but thats going to be solved today and now im onto this one. Im going to wait until my octane is almost pure 93 before I try to do anything about it, but I was wondering if this was a normal situation.

Thanks

No I didnt

I'm going to wait till I get my octane up to 93 (or 99%), because technically its 25% too low

Yeah the two other tunes are a long story, but they have nothing to do with performance.

I think I may have too agressive a tune, but again im not going to do anything until I get a good 93 octane tank of gas. Thanks though, good to know it might have been shipped that way too agressive