<HTML>I have a 70cc spped kit on my puch and love it. I had to file away a large chunk of engine case (which was serving no purpose anyway) to fit the carb in place. I weigh 250 and this thing does 50mph and fla land and 35 up hills. I recommend these kits but be sure to use assembly lube (available at autoparts stores) and no full throttle for 200 miles. Also you will want to run alittle extra oil in your two stroke mixture.