Well that's great.
What is it doing at idle?
IF the carb is set up properly, linc n sync done, and still poor idle, did you set the points timing? If so, how? Setting them with a timing fixture or the like, and buzz box/meter will get you the absolute best idle. You need to get the cylinders to fire exactly 180 degrees apart for best idle, which is hard with feeler gauge alone. Don't get me wrong, millions of people use feeler gauges, but for best idle, a timing fixture is best.
What plugs are you running?
DId you pull them after your run? Check colour? Check for any water droplets?