jpaz's post in Timing frustrations was marked as the answer
Well, you need a choke or cold starts will be an issue.
The carb was milled? Not sure what that means. The one thing that I can definitely tell you is that carb needs a hole drilled in each of the butterflies. Forget what size but Stanglover, who is a member on here can definitely help you out with trying to get your carb tuned. Your definitely not getting enough air.