My seat-of-the-pants dyno tells me about 1/8 horsepower...maybe a big bore kit is next?
My seven-year-old son got this working model engine from my parents for Christmas. After putting it together with his "help," I'm pretty sure this was my father's revenge for that Richard Petty model stock car that I got when I was about six or seven. Cool project, but a little advanced for a 7-year-old. I had fun with it...and he's really proud of it.
Will