I have an '89 modle 19' Bayliner Capri with a 2.3L Ford engine and an OMC Cobra OutDrive and do not like the lack of power. Would I be cheaper out to upgrade to a larger engine or do a 3 angle stainless steel valve job and bore this engine for more power? If I went with the upgrade to a larger engine, what engines will fit my boat? Can I get an adapter/conversion kit to install a V8 engine?