I'm slowly building Tamiyas 1/350 KGV, I am about to do the funnels and on checking out other builds it seems that some people leave the funnel/s blanked even if they have upgraded the funnel caps.
The Tamiya caps have what appears to fittings coming out of the funnel what are they? Should the funnels be hollow, as I presumed, or are they best capped off? Does anyone have a good photo or two to work from as I can't find any.