85 Egr hose to intake loose !

[Tampa T-Type]

I found that the metal pipe that goes from the Egr off the manifold to the valve will not tighten on the manifold side. Seems like the threads are not stright on the bottom of the run. Any material or patch I can do to seal this?
Some peolple are advising to remove the egr all together I heard it will cause the car to detonate. Trying to put the intake back on and this needs to be done first.