I think the fuel injection would work if you can figure out where to put the
oxygen sensor. You can't put it in the exhaust where it would get wet from
the water pump output. You will definetly need an ECU. May have to have a
new EFI engine exhaust manifold.

I would save the money and install a 4 barrel intake and carb (make sure the
carb is marine) instead. That will give you more power and will be a lot
cheaper.

What is the boat and what year?

--
Tony
my boats and cars at http://t.thomas.home.mchsi.com
"John A" wrote in message
.com...

OK, My intake manifold popped (two barrel 8 bolt 4.3). As long as I have
to replace it, I would like to explore a few higher HP options.
Ebay has a bunch of Throttle body fuel injection manifold for auto use for
sale. Could these be used in a marine application? What type of
conversion
would have to be done( does it need an ECU etc)? How many HP would it buy
me??


--
John

WWW.Firewalk-NC.com

"Be the change you wish to see in others"

----Gandhi