octane vs jetting

[camoweasel]

I'm curious to know, when switching to a higher octane fuel; say 100LL, are you supposed richen or lean out the jetting? My 350x is running 10.25 compression with the stock for now. Today I decided to run a tank of 100LL. I couldn't really feel any gains or losses in power but it sure did smell better. I understand the theory behind compression and octane but hypothetically, should one jet richer or leaner??

[blkstangman88]

higher octane just resists detination. so say 13 compression would run 110 octane. higher octane does not make you gain power. it just works with a higher compression

[camoweasel]

I understand the relationship between octane and compression levels. I also know the specific gravity of 100LL is smaller then pump gas. So basically, would this mean that it is a leaner burning fuel?
Now whether or not any power is gained or taken away is another story.