I have a 1983 Mercruiser 898 with a 305 and a i/o mercruiser stern drive. I have a cracked block and decided that I want to upgrade to a 350 of same vintage while I have the engine apart. Does any of you experienced boaters recommend a place that I could find a high quality remanufactured 350 that will not be a huge hole in my pocket. Also, if anyone knows where I could find some exhaust manifolds(log style) for it too. Thanks.