I have a World Models Patty Wagstaff Extra 300 im wanting to get a good engine for it.
Im looking into Fuji , 3W, or a zdz.

Im looking into a Fuji 64 its
Weight w/muffler: 5.7 Lb
Output: 5.7 HP @ 9000 rpm
every one knows you cant reach that rpm with a gas engine looking more like 7500 rpm.
im am considering a 3W 75
weight with/0 muff. 4.75 lb.
7.5 HP
which i know its a lot of power but its weight is around the same.
I don't want a DA 50 they are to expensive for what they are. And the zenoah 62 are to heavy for the power they give off I know the Fuji is about there as well but there a better engine then the zenoah. Can someone help me with there opinion about your experience with this plane. thanks.

I read someone put a 3W48 B2 , and trying to find out how that worked out on a pending email to that person.