adam, there is a guy over on bigblockdart...i think his username is cuda66273
he has somne business...i asked him for some suggestions on mine, and he seems to me to be pretty knowledgeable, and said he can take all your specs and set up the carb for you before he ships it and it's supposed to be right on the money.....possibly an idle adjustment....
i'm sure you've seen his posts and heard of him, and i'll probably give him a shot when i get ready for a carb