I'm trying to find an old post about this guy who either ported or milled the cylinder heads on a puch and another moped and maybe changed the gearing. I've searched for like an hour for it. This is what I think I can remember about
The guy was from somehwere out west like South Dakota or Kansas and was older. I think he wrote he got his puch going around 37mph. Guy didn't post most and it might of been his first and maybe last post. Anyone remember that?