Hello everyone! Would like some help from all of you with experience - I have an 84 21' Cuddy Cabin Invader with a Volvo Penta 260 outdrive attached to a 5.0 GM carburated motor that sustained a 2x block cracks while in Afghanistan - not properly winterized..... boat is in great shape and has sentimental value and would like to keep it....would like to replace the old carburated motor with a newer Fuel Injected of same or slightly higher HP. Is it doable and what are the technical considerations? Any suggestions or recommendations for a good place to buy good, reliable and reasonable marine engines? Thank you.