I was given an Echo SRM 1501 trimmer and wanted to see if any of you folks could help me with a conversion.

I don't know what cc it is-perhaps a 21.2 if I had to guess. At any rate, I would like to try and convert this engine (if it is a good candidate) with a larger carb, aftermarket muffler and perhaps EI if there is a very cheap and complete system. I would appreciate any and all help with this one-the only conversion I have done to date was a Homelite 33cc which was very easy. I really dont know where to turn for parts and which specific ones I would need for an Echo.

Thanks!