Sorry if this is the wrong spot for my question

So I currently have a eliminator 207 skier with a 350 and a alpha one... im considering selling it for a spectra 20. I love these boats but they are hard to find with an outdrive.

How bad is the fuel consumption on a mini day cruiser jet boat vs an I/O? this my only concern... I can currently do 4-5 laps on elsinore on 15ish gallons.

Thanks,
Chris

hey all this is my first post!

so i just bought my first boat on friday, 1974 spectra 20. has a berkley jet and came with a BBC 454.

now on with the question. the motor is currently out of the boat. it came from a 1970s chevy pick up. it doesnt have any of the marine hardware on it.

what exactly do i need to make this motor ready to drop in the boat?

here is a list of what i have:

-motor plates front and rear
-idmar exhaust manifolds
-all the driveshaft hardware
-1970s 4 bolt main chevy 454

list of what i know i need:
-10 qt baffled oil pan
-carb(dont know brand or size i need)
-ignition(unsure if the stock dist will work)

thanks a bunch for your guys input,
chris