Here is a link to the Suzuki test page w/twin 140's.
I was looking at the 250 for my 23WA, but I am not that impressed with the fuel consumption. I was hoping for better results. I know I will have to repower one of these days as I am running a 1989 Merc 200hp now.
http://www.suzukimarine.com/boatbuil...eWeekender.php