first wot run on fresh rebuild but seems flat on top

[tsharktim]

First gotta say thanks to all in here, I rebuilt m first shee and was able to ''search'' most of my questions. Anyhow had it out on the roads and hit 75 according to my buddy who was next to me on his r6. this is a all stock bike w 65mm wisecos, just seemed to be flat in 5th and into 6th. is this a lack of pipes to let it rev out more or a jetting issue? another shee was starting to pull hard as i was falling flat but his has fmfs, reeds, k&n filter. as of right now the bike sits w a uni filter, no air box lid, 220 mains, air screw 1.5 out, 700alt and70 degrees the rest is stock and needle is set in the middle. I plan on getting pipes soon just want to make sure im not too lean up top and melt down the fresh work.