Will 5.7l hemi advance timing for 93 octane fuel?

A 5.7L Hemi engine's timing is not manually advanced by the user based on fuel octane. The engine's computer (PCM or ECM) controls the ignition timing dynamically. It will automatically adjust the timing based on various factors, including the detected octane rating of the fuel (if it has knock sensors).

Using 93 octane fuel will *allow* the PCM to advance timing *more* aggressively than it would with lower octane fuel. This is because higher octane fuel is less prone to detonation (knocking). However, you don't manually adjust anything. The system does it for you. If you try to force an advance, you risk engine damage.