The attached three pictures have me pointing to some EGR ports, and where they seem to connect to a point near the intake manifold. Do these need to be blocked off other than that provided by the exhaust flange and the intake flange having no opening in those locations? If so, what do people use?

 

Thanks,

Bill Schertz
KIS Cruiser # 4045

<EGR_port_3.jpg>

<EGR_port_1.jpg>

<EGR_port_2.jpg>

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