Whatever the year (73, 74,75 or 76) it looks like a pretty wild ride. It is the only twin v-6 tunnel race boat that I have seen . I wonder how it ran? Would it run with the singles?
Other wild one off creations that I am aware of are the merc two powerhead wizard that Hauenstein put together and the twin v-8 engine Moly that Renato tried to run un Unlimited.

