Hello all. I recently aquired a 1983 Larson Nantucket Express 22' with a Mercruiser 350. The boat has been stored for over 1 year by previous owner and slipped at Newport byfirt owner. Since I am new to boating I have very many questions and neither of the owners kept any of the manuals. I was able to get the following srial numbers off the cover of the engine. Engine #OC670697 Drive#OC813017. there is also a partial for the transom last 5 #s 88327. I have tried to search this info and got close but no definite hits. I think the engine has been changed from its original 83 model to a 1990s and drive is an Alpha one. Any suggestions. Thnks a bunch