You mentioned that it gets worse when the choke opens up.It sounds like you have a vacuum leak either at the intake to head and/or through the vacuum advance,,,,, Or does it have a vacuum advance?( I am guessing it does)
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us. - - Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!