1968 340 AVS 4425S carb problems

Well we cleaned out the carb, there was some varnished over gas on the floats and a little dirt at the bottom. We put everything back together and turned the screws 2 1/2 turns out as a starting point and the air bleed 1 turn out and the car started right up. It was running rough but with the vacuum gauge I found the highest reading and the car now idles more smoothly and did not vary in rpms as much, only once or twice after stopping. It is still not 100% there but it is getting closer. I will play with it some more soon and see what I can do then get back to you guys when I have any updates.