[James]

Almost forgot to mention. Be sure to clean out the fuel system from fuel tank all the way to the carburetors. It is possible whatever is left (even if it had completely dried up) in the fuel tanks, fuel lines and carburetors could get mixed in with the fresh fuel and cause the intake valves to get stuck. If the intake valves do become stuck, then the heads will need to come off for repairs.

While you are at it, remove the valve covers and inspect the valve train. You had already crank the engine over, so checking to make sure you do not have any bent push rods (from a possible stuck valve(s)). If everything is OK then check the valve clearances. Then close up the valve covers.