New p.o.s project boat (1980 Century cortez 300) has twin 228 mercruisers inboards w/ v drives. Engines are 3yr. old re-mans. Is there some Manual for this combonation?<br /> The 228 is a 305 w/ a 4 bbl carb. I still haven't i.d. the transmissions . Any ideas?<br /> thanks , Ed