thank you guys just want i was looking for now i will explain why im asking we have a build they we are currently getting ready to get tuned and need to decide how to get the tunes set we are running several different tunes (e85,109 race gas, 93, ect) but the main concern for this build is heat and needing to keep detonation from occuring since we are running 11:1 cr and pushing boost in the neighborhood of 10-15lbs (btw i am running water alky injection) i know this will spark the usual critisim but i know the facts so regardless if you think it will work or not i know it will lol we have spent rediculous amounts of money making this engine and now its done to the last two steps tuning and fuel selection i want to thank every one on tt.net for all there help (even if it was just criticism that just sparked more research)thanks guys keep the good stuff coming