If you're running with the cats, you probably just killed them if you ran a whole tank through it. 110 is leaded fuel whereas 109 and lower is unleaded. As far as any performance gains, I'm guessing it was just a placebo effect and to be honest, the higher octane fuel burns a lot cooler so I'm surprised that it didn't actually degrade the performance. Our computers aren't set to advance/retard timing based on a closed loop feed from the knock sensors. The ignition maps are written with timing built in and then it adds/removes timing +/- based on IAT, ECT and load. It will pull timing based on the knock sensor inputs but not add it back in if they're not picking anything up.

Sorry to burst your bubble champ.