aug 2014 Mac 1-80 gear drive.87cc/5.3 cubic inch torque monster.Sold from June 1959 to July 1960,this features one of their early racing kart engines - the MC10.
100% stock except for electronic ignition module upgrade that replaced the old points & condenser.32" bar with very rare almost new Oregon 5A 9/16" pitch chain.Saw will pull 42" bar/chain all day long.