Once raced a dude that was sure his banshee was faster than mine. He said he had a special, stage 2 hot cam in it and he knew he'd burry me. He also had, "the best pipes ever made, toomys." He also didn't want to pay up when he lost.
OP: your bike is nice. But you also have to realize you're on a forum with dudes who not only know banshees, but also have bikes that are very well built. You're never going to get what you're asking for it. But when you build something like this, you never do. You also need hard facts about the bike. We're not newbs who take a sellers word for things. Mainly because every used banshee has a, "fresh top end, magical porting, runs a race gas, too fast for new riders."