okay so in my previous post you could see that i purchased a 1989 carribean witha bbc with bent valves. i have a spare 454 bbc mercruiser 330 horse engine withabout 300 hours on it that was rebuilt stock std std about 3 years ago. the only performance upgrade was a mild cam. would i be better off to rebuild the one in the carribean, or popping in the merc engine with a cam upgrade> if so which cam? i also need to have the interior redone. any recommendations on this? just take it to some upholsery shop or is there someplace online?