This is probably a silly question, but how much power do these little things make? I have 2 "80"cc motors. one from local vendor years ago (never ran) and another from spookytooth. the first claimed 6hp (???) and Spookytooth's has a lable listing 2.75hp, I'm assuming thats peak. So what do these things make for actual, usable power? What kind of power is available at cruising speed?