we have a shop here in Oroville CA where I live that buys these little 70's all day long and puts ported and polished chinese 150 honda knock off motors in them. My wifes unle has one and takes it to the Oregon dunes with them when they go. I have never ridden it but I am told he can go up some gnarly hills with just the knobby tires on it. He only weighs about a buck 30 though. I have pull started the bike though, talk about compression, the damn bike almost lifts off the ground when you yank on it. I will have to get some pics of it. It sits out at the airport hanger where my Father in law is building a 500hp 68 Chevelle.