I dunno what mine weighed with the OS160 setup.. but it harrier'd OK... and would do a wall with only a little wing drop... actually my 3D trainer!!!!

OS160 with the 18 x 6 and 15% fuel... prolly around 9500 RPM's....
I don't think a gasser will compete with this at this weight.... even with 16 ounces fuel verses 8 ounces

Don't get me wrong... I hate slimers, and the day a gas motor with muffs and battery and ignition module is weight competitive... I am all over that....
I love gas!!!!!

http://www.highdesert3d.com/mithrander/mithrander.wmv