tuning carb to MSD two step

well, I had the MSD unhooked for a week and the car ran okay. Now I decided to hook back up to start tuning at the track this weekend and now I have a real bad miss off idle up to about 4000 rpm. I let it run bad at about 3000 rpm and shut it off and pulled the plugs and they are very rich! I run a 750 vacuum secondary Holley with 77 primary and 89 secondary jets, with the lightest spring for the secondaries. There is no bog when I stomp it rich or lean. It seams that my 2 step is set at a rpm range of 2500 to 4000 rpm.