Holy Horsepower Batman!!!
Check out the Harrell Engineering 580HP 6.2L Chevy V8 Outboard!
Looks like an automotive small block V-8 bored and stroked to 378 cubic inches! It must have a specialized oil pan and a dry sump oil pump...?
A specialized fuel injection side draft throttle-body supplies the juice which will flow nearly 40 gallons per hour!!!
I wonder how well it will troll???