While I generally agree with the comments above, don't expect miracles with that 2-spd auto. Especially if you have something like 2.56 gears behind it. Your best bang for the buck might be a 2004R upgrade and better gears. The 2GV 2bbl is a good carb overall.
Fixed it. If you're going to upgrade transmissions, might as well take advantage of the deeper 2004R first gear and get the overdrive.