idle mix screws, base setting?

well it seems to like a hair over 3 turns, idles 800 rpm, and holds a steady 9 on the vacuum gauge, I don't know the cam size, but I know it has a lot of over lap, now what can I do about the fumes? I'm talking burn your eyes and make you cry fumes, before I got the carb set, I couldn't get it to idle below 1100 rpm, but now the idle is fine, stays running in drive and starts right up, my timings set at 10 btdc, thanks.

Mark