Has anyone done a comparison of the 625 Street Demon to the "new" AVS2 650? Both seem to get good reviews as a street carb that works well out of the box with good throttle response. I need a new carb for my 340 and one of these would carry me over pretty well as I prepare for a proper full tilt build. I'm leaning towards the SD but the annular booster on the AVS2 is intriguing as well. I'll probably need a 750 or more when I'm done, but at this point the smaller carb should hang in there until the very upper rev region.