im sure its 84hp.one site gives 95hp.im sure they are wrong i put emgo air filter pods(4-one for each carb) on mine.then the Mac 4 into 1 exhaust.i can get past 50mph easily in first gear and about 85 in second.i dont do it anymore i was just tempted bad that one day.it does require arejet for the carbs if you do this.