G'day The little SS 1.5 that started this thread is quite a sweet running little engine. It was extremely easy to get running, easy to tune and while no Super Tigre or Oliver Tiger Cub was quite powerful - too powerful in fact for the little Gas Buggy. I was quite surprised at how well it ran. I had the 2.47 version some years ago but I did not ever get round to running it and it moved on via a certain auction site which shall remain nameless.