I don't know much about the Poulan but I am building a new web site for RS Engines and posting some conversion instructions on it for the Homelite 33/45 cc engine. The site is not complete yet, but some of the pages are up. If you would like to take a look at the instructions so far, go to the following link and then click on the link to the white pages.
http://webpages.charter.net/rsengine...e33/33kit.html