Ron,
I just started breaking in my B5 yesterday and I am very impressed with how it's running already. I know this engine will be better than my B7, which I really loved.
Have you ever heard of the idle needle being bent from the factory? I had to richen up the bottom after first start-up. Then I had to turn the idle needle to get the idle back up. After doing so, the carb slide started sticking!
Not a big deal. I just took the needle out of my B7 carb. That was the only time I turned the idle needle. But it was bent enough to make the slide stick.