this is the motor they recommend
http://www3.towerhobbies.com/cgi-bin...1&I=LXPPX3&P=3

which runs max 42A, cont 20-30A in the best power band, and the motor you are looking at looks more like 20A cont 28A max, if you get a 4s lipo then you can get your 75w/lb, but if you run a 3s lipo you're only looking at 55.5w/lb

so I would say, maybe if you run a 4s lipo you might maybe be able to get by with it. HL has good support though, call them up and see what they have to say as far as recommendations and see if they think 75w/lb on a 4s lipo will get that plane around =)

the motor they recommend with that one is going to be about 84w/lb (3s) to 111w/lb (4s) at the high end of the max efficiency. If you wanted to fly slow you might be able to get away with less though