its not about shifting where it stops making power, the idea is to shift while its STILL making power, but at a point where you fall into the right spot in second gear where power has started to build. Like I was saying, theres a calculater for figuring out where to shift in each gear based on gear ratio, power and torque curve and the optimum rpm will be slightly different in each gear but if you average them all together to just pick a safe rpm to remember for a stock 1st gen with no mods the magic number is 10300