Thats within 10% of each other. It sounds a snitch low but it sounds like the rings are wearing evenly on both cylnders. I read on Alba's web site that they like to shave the head and run there stock banshees at 155-160 psi.
Most of my freinds running their ported, polished, and bored banshees run around 175 psi. But they are changing their dome size to get there.
Ill call a freind today who knows this stuff inside and out and see where you should be on a complete stock banshee and repost tonite.