i don't think I have the dual throttle cable..
spyder - I have an engine available off of a 1979 PA50I that was in running condition when it was parked several years ago, I also have most of an engine (think its just missing the head, i do have extra heads though) off of a 1978 PA50II Hobbit. Let me know if either of those interest you..
joe -
i don't think I have any more mufflers but I do have the muffler side cover..