Ive seen it mentioned where its something to block off when doing an intake manifold gasket, IIRC, as it helps to prevent excess heat to the manifold and reduce chances of percolating fuel in the carb. What are the steps to block this off, and where exactly is it located? Im getting ready to do my intake gasket over and if it applies to me, I'd like to block this thing off while im doing this.

roe