The only difference is a heat source for the auto choke to use. You can plumb a small copper line down to the exhaust manifold and wrap it around the whole manifold or lay it across, as long as the copper tube heats up, either will work. The hot air drawn in through the copper tube will heat the auto choke spring and back it off. Water heat will be to slow for a choke.

The rest of the carb should bolt right into place.

Joe