ak

hi everyone,hope everybody is enjoying their boating summer/weather,i cant stay out of my boat these days.i am planning on building a new motor for my boat using my crank and block which is a330hp 454ci merc,i am experienced with fast street car motors as i have had a few and also now have a 04 zo6 corvette with a 436ci stroker small block in it,i want to built a 468 out of my motor,i plan on using dart iron eagle heads with some work done to them,any ideas on a cam selection or advice on this build?i want to be pretty stout,my exhaust exits under the swim platform so i dont know how big of cam to go,i run premium fuel already so what comp.ratio is a good number,all input would be awesome,thanks guys.