Lots of SKA boats now running triple 225/250's, with a total engine weight of over 1800-1900 lbs. Twin 350's with a total weight of 1606 seems to me to be a better solution.
And this looks like a good idea for a single on the back of a 23'
Of course, twin 250's on a flotation bracket on the back of a Sceptre still look better sitting at the dock.
I saw a yellow one this week at Crackers restaurant in Crystal River w/ older twin 250 2 stroke Yamaha's.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury