shifting while racing...

i have a similar situation with a much slower car
where my power starts to drop at about 5600-5700…i usually shift right about 6k…now with the addition of my new intake manifold it will make power all the way to 6800 but thats in the future…my torque starts to srop at about 5k but then hp takes over to keep the boat somewhat pulling
http://i6.photobucket.com/albums/y202/ckilger12/CKILGER6NA.gif