Scole,
I'll be out in Central NY next week. I'll be making a visit in Canandaiguia (Rochester area) on 1-2 July and then off to Syracuse area. If Fairport is anywhere near either place, I'll be happy to hook up with you. I'll bring some Pro Bro 10% if you think we can hook up.

I agree with the above, fuel is not the problem, fuel delivery is. Once you eliminate the air bubbles, you'll probably be just fine. sounds like a vibration issue or air leak or a combination of both.