Tom Perry in florida converts homelites. A fellow club member had a couple of 25cc engs done. They came with electronic igns and the shaft was set up for props. These engs run great and can swing a decent prop. (16-8 prop at 78 to 8000rpm) All the machine work was done and they came with a motor mount. You can buy one already converted or send yours to him to do. He is great to deal with and can help a lot if you run into problems. His e-mail is
[email protected]
Hope this helps