If you don't use the factory EGR leverage bracket, you gotta glue that sucker/block off plate with some high temp silicone on both sides of the gasket. If and when you port the intake, have the EGR passage epoxied / JB Welded off so it's completely non-functional.
Permatex High Temp Copper RTV is the go too these days. And let it completely dry for at least 24 hours before starting it up.
-Patrick-