I'm buying a 2000 Gulfstream 232 with a single 250HP Yamaha. The boat comes with a bracket for an auxiliary get home outboard. Any suggestions as to power?
A 9.9 will get the job done - with the obvious limitation that it has compared to the size/weight of the boat. But check out the specs for the bracket and buy the biggest OB it (and your pocket book) will allow.