Thanks for the quick responses.
I was getting ready to go back to the ramp in reverse when the coast guard came by, so I flagged them down. They were very helpful once I proved to them that I had all of my necessary safety gear.
The motor is a 305 Chevy. The controls are from an unknown manufacturer, but there is a model number: M-1100-DIA. I really hope you can help. That would be great. Here is a photo of the controls:
