Rans s6 with 582 engine conversion

[Guest detectivedrew]

How yall doin. New to this forum and looking at purchasing a Rans s-6 coyote with a gray head 582. I want to convert to 4 stroke power but dont have the money for the Rotax 912 which this plane was built around. Hear of anyone using a VW conversion or HKS in the bird. I need at least 65hp at cruise assuming the 4 stroker will be a bit heavier. Thanks, Drew