Hello, I am researching to purchase what will be my retirement boat, been boating the Chesapeake Bay for many years on express cruisers burning lots of fuel. I've run across a 2000 OA 430 Classico Mki with 330 Cummins engines, I have obtained spec sheets on the engine so know gph burned at different rpm ranges, but I cannot find any numbers of how this boat performs at each rpm range, can anyone help me out from personal experience or point me to a source? Brokers and sellers are of little use as seems these days everyone is afraid they will be sued if they give numbers and they don't hold up after a purchase, which I get but it is making it very difficult for me to make an informed decision on whether this boat is going to fit my fuel burn parameters for my planned several years of cruising. I'm somewhat surprised I cannot find anything out on the web as by cruising some forums can find numbers on most all the common cruisers out there. Any help appreciated.