I hope you didn't get a stage 1 Dynajet jet kit for it... they are a pain to tune. I fought with my dynojet kit for ever while getting around 32-35mpg... It was lean and it was rich all at the same time, quite a pain. I blamed the needle. I'd pull the carb out and see what jets are in it. I'd start with like a 45 pilot and a 180 main and go from there. I found a cv carb off a sportster at a swap meet for 10 bucks, pulled the slide, needle, and spring out of it. Put it in mine and it made a world of difference. I shimmed the needle up with one washer. Too early to tell what kinda mpg difference it'll make, but it seems to running better.
BTW - if you insist on using the dynojet emulsion tube and main jet they are actually pretty good, but you'll find you need a smaller pilot jet than usual.