ROYDEFIANT
i had to egg shape the holes about 1/16 each side to make them wider,that is alland does not leak at all, i also cut out the baffle inside the can,it was only good for adding about 150 more rpms, realy nice engine, no rattling noise like my DA50 has,never had a dead stick yet,and no burbbling noise no matter what aditude the plane is in,plus it is a little lighter than the DA and a little more power