ok, what your gona end up with is:
Line comes out of the tank. Goes to the filter. Line from the filter to one of the two ports between the carbs, where the cross line is. the other port is capped off. And both vacuum ports are capped.
Line comes out of the tank. Goes to the filter. Line from the filter to one of the two ports between the carbs, where the cross line is. the other port is capped off. And both vacuum ports are capped.