I went out and flew today and I adjusted the low end a little at a time and I got higher rpms and the engine quit surging after about 3 full turns. I flew around for about 10 minutes and I could hear it start to surge again so I landed. After reading John's post I realized that when I thought I was making the low end leaner I was actually making it richer. I was tightening the screw without thinking about it which made it richer. I'll try to lean it up tomorrow and see if I can get it to work. Thanks for the help.