[jim19958]

the bore change from small to big was basically done to improve idiling charistics, also other modifications were done after the change mostly carburation i think there were 2 or 3 diff. carb configurations in one year in some of the preceding big bore models, but all that was mostly concerned with idle and intermediate circuitry. they all (200/225 LOOPERS) thrashed around at idle a bit till the later models when they finally got it right, but all ran great at W.O.T. old and new were great motors,
but they did like there FUEL and hated to run lean at W.O.T. also keep an eye on the flywheel magnets factory glue tended to come loose, the magnets would shuffle around inside, a new flywheel is close to 1000 bucks now, but we usually can rebuild them for under 200, the prob with used big motors is if you can afford the big boat there on and the fuel to run them you can usually afford to buy a new motor, so there usually a hard sell for any kind of good money,
want to try something fun try a big block E-tech we took an old pair of 225 loopers off and installed a pair of 250's the change was phenominal.