Hey everyone and Eric Brooks ;-). New here. I have a 2008 GT500 with the following upgrades: JLT123 CAI, L&M 66 dual throttlebody, 2.4" pulley, 170* thermostat. I am tuning using HPtuners and was wondering how much timing is safe for 93 octane.

Just did a 3rd gear pull this morning. Cool dense air. ECT was 176*, IAT was 57*, AFR 11.03-11.40. Timing 18.5-23.0* at the top of the pull. Pulled like a bat outta hell. Feels good, but I want to be safe. Is 23* too much?

Also the local gas station sells 100 octane. If I run that how much timing could I safely run?

Thanks.