Very nice, if I were you I would have added another 3* of timing with that low of boost. I think 23psi would have been do-able as well. Did you use antilag? NLTS? 10.5 is a good ratio from my experience, leaning out the mixture doesnt really do a whole lot for power, so keeping it around 10.5:1 seems to be an excellent buffer for knock. What was your peak timing? 19? I run right now 18*, and 21.5psi out of my small 16g on pump gas, which is my reason for saying Id imagine quite a bit more timing could have been added on your setup. She's definately got a ton left in her bro .