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Thanks guys, appreciate the feedback

Hi All, I have a 4.0 L V8 Lexus motor in my dirt oval racing car. Currently I'm running the RPM's at 7500 with no problem at all. I'm now going from dirt oval to tar oval and need more RPM's and want to step it up to 9000 with 106 octane fuel. Will the motor be able to handle the up in...