Can anyone give me a round about estimate on what a 455 puts out? It's just average with nothing fancy...has exhaust logs and I believe a 650CFM carb (but I'm not sure). The carb is a Holley and the only markings I could find on it were P80. I checked their website but couldnt find a match, if it's even the model. I'm lookin to get some insurance on my boat..mainly just in case anything happened that the passengers would be covered. And all the companies want to know how much HP the engine has. I figure spring break at a hella popular place can be great fun... but booze and folks with fast toys usually are a dangerous combination; if we happen to get tagged by a drunk twit on a jet ski I'd like to not have a huge bill to pay... and then there's always the possibility of what if I fawk up and injure someone (pray that wont ever happen). Rather be safe than sorry.