Hi there, I’m currently doing up a Lifan 70cc atv for the kids, first I’m not interested in upgrading to a larger motor YET, I want to see what we can get out of a 70cc first, already has a pkw carb, race exhaust, cdi, 1mm head gasket, has had ports matched.. now I’m really looking for cam info. I basically want the highest rpm cam that will fit a stock 70cc head on a low budget, will a Honda z50 cam fit? I’m also very interested in any other performance mods, I think timing/ignition system might be next