Talk about going back in time Dick....
ST2300, the setup that worked for me was Conley (Perry) Mega Carb, 25% Cool Power, 17x8 APC prop, Bisson Pitts muffler with one outlet blocked off and the other partially blocked to get good tank pressure, and an OS-F plug. Yes it definately needs the F-plug! I hear the new Chinese carb works so you probably don't need the Conley carb.