Actually, it sounds pretty good. I don't hear any whine and I don't hear any valve tick. The noises you're hearing are probably because you're listening too closely. Happens to me all the time after doing motor work, I'm always listening more carefully then I normally listen. You should hear how bad some of the engines I get in the shop sound, it would make you cringe and they're still running!!! You're engine sounds TIP TOP! 