Negative effects of timing advance?

[90'5.0 Conv]

Ok, I did a search on all timing questions and can't help but to think that the wear on your timing chain as well as temperature are the main factors in being able to advance your timing. Oh yeah also of course the octane fuel you run. So, what I basically am wondering is how someone can run 32* timing. That is just amazing to me. Like I said earlier in this thread, I bumped my timing up to 16* and had a very noticeable difference, but the weather here in So. Georgia has also cooled off a bit (highs in the mid 80's as appossed to mid 90's that is has been). When you hit that noticeable difference, Is that when you possibly should stop. Please give me any info you may have.
Thanks
James

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90 5.0 Convertible
and loving every minute
of it!!