Well, the old 80's era Picco 61 marine engines which were only a 5 port cylinder, made better than 3 hp on fai fuel. I would say the timing may be different some on the aero motor but it should EASILY make 2.5-2.8 hp in the aero motor. I will tell you this, in marine motors if guys could get parts for them today Picco would be as much in demand as the MAC, or CMB marine motors. The Scream with hp and rpms just cannot get support on them anymore.


Regards Curt