Typical ignition timing response to throttle snap?

[PHXSYS at aol.com]

HI everyone

I was wondering  what effect rapid throttle movement has on ignition timing.

I know that extra fuel is injected when the throttle is quickly depressed  to 
improve throttle response. Are there any ignition timing events that occur at 
the same time to also improve throttle response?

Do you get a little extra advance during TPS event or what?

Thanks

Jon