I've got an old control line plane similar to the ones I used to fly waiting for restoration. It has a gold head .29 McCoy rear carbed engine. Bought from the original owner who said it was last flown in the late 60's. Can't wait to bring that old engine back to life. This plane will hang from the ceiling after restoration.

This would be a perfect engine for a tether car. No mufflers back in the day!
