I have a nice lazy ace 62" bipe that I picked up from a fellow club member. I am trying to decide which engine out of the two that I have to put on it. I have a new ASP/magnum 91 4 stroke and a new ASP 108 2 stroke. The plane had a YS 91 on it when I got it. I had to give that back to the guy I got it from. I would really like to use the 4 stroke but I'm a little worried that it would be under powered. I am not looking for unlimited verticle but just good performance. It will be a gental Sunday flier type of plane. I would like it to be ablel to do loops and rolls and basic stuff like that. Any information that anyone can give me on this plane would be verry useful in helping make a decission.

Thanks Rick