What kinda power should I expect?

all depends on the dyno.I use 18% loss for an auto, 15% for a manual trans. But there are settings on the dyno that make some "happier" than others. If you really want to know what it's doing, use the dyno to achieve the highest numbers you can, thne take it to the track and run/weigh it. Use those numbers to see what it's really doing. Dynos are only tools.