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Basically whenever I feel like it. I'm not big on fuel economy so I'm going to drive and shift like this car was made to do. Generally like 3 grand or so...I like to go fastoff the line and getting upto speed.[sm=badbadbad.gif]
For me its what ever sounds right to me. I let the motor and the sound of the exhaust decide when to shift. She will tell you what works for her! If I didn't have a tach it wouldn't matter.