That's basically it. You can use an aftermarket automotive aluminum intake
buit the carb needs to be marine. For that engine I'd stick with a 600 or
650 cfm max. Any bigger would really be overcarbed. Don't expect any
overwhelming performnace leap. Maybe 3 mph or so more on the top end.

"crystalguy" wrote in message
oups.com...
I recently purchased a 1988 Sea Ray with a Mercruiser V-6 4.3 with a 2
barrel carb (175 hp)
Is it possible to convert this to a 4.3 with 4 barrel carb (205hp)
Is it just a matter of changing the carb and intake or are the
ingnitions different?

Any input would be greatly appreciated.