This is owned by some Canadian guy who apparently has a lot of money and a very small penis.
I can only imagine what this thing sounds like at full throttle being that those are five, four stroke blown V8's....
You can run them independent in most cases. That thing is probably heavy enough where you would want atleast 2 running.I know! He's bringing spare parts.
Seriously, I think I would've gone with a marine LS motor. Similar or less weight, less complexity, similar power. But less 'bling'.
I'm ignorant with boats - how do multi-engine boats like this link together to put the power down?
Guessing he might not always want (or be able) to run all engines at once. How does that happen?