Ok some say no water injected headers under motor covers. Jacketed makes sense when space is tight. My aristocrat has huge amount of room under motor cover. Was thinking headers since they don't touch or close to anything at all. If I look at alot of the new race boats with tilting motor cover hatch, they have water injected headers not jacketed. They don't have any rubber hoses to connected to transom tho as with our logs and snails. So whats everyones input? Safe or not safe? Shown is pic of my engine bay. Headers not close to anything.