you are a 91. meaning you have a type I. your fastest times are going to be run shifting at 6500. With intake an exhaust, as well as a chip, you are going to be best centered on your hp curve if you shift at 6500. What you have to realize looking at a legend dyno graph(especially type I) is that your torque goes down the ter at 4600. after that it drops like a rock.
i have run at the track shifting at 6200, at 6500 and at 7 grand, as well as dynoed. with an auto shift at 6500. on a manual, you actually wanna shift around 6300 to put you centered in your powerband.
i have run at the track shifting at 6200, at 6500 and at 7 grand, as well as dynoed. with an auto shift at 6500. on a manual, you actually wanna shift around 6300 to put you centered in your powerband.