What octane will be needed for a 12:1 DS at sea level? And I do mean right at sea level[img]i/expressions/face-icon-small-smile.gif[/img].

 

somewhere between 105 and 110. I would run 110 if it were me.

 

i am running 12.5:1 and im at 600 feet above sea level and i run cam2 100 octane. no detination or pining. i started off running 114 but was totally over kill for my compression. it actually feel snappier on the cam2.

 

I would run 110..

 

Thank you gentlemen, sounds like 110 would be my best bet.