Fastfly,

All the engines mentioned so far would suit your plane choice well.

My preference would be the O.S. .46 fx, as they are about the most user friendly as any engine you will ever own. I see you are in Minnesota, you can pick one up for about $109 at Hobby warehouse in Richfield.

From the sounds of your posts and your plane choice, I would guess that you may be new to RC Planes and that is why I would recommend the O.S.

Very user friendly engine, that will fly the Tiger wonderfully.

What field do you fly at?