well, the title of the post would tend to indicate that you're deleting the EGR, or at least keeping it from functioning as the design intended.

all of the vac tubes and valves underneath the "black box" on the valve cover control when and if a vacuum signal is sent to the EGR valve depending on throttle position. the temp switch on the thermostat housing is the final arbiter as to whether a vacuum signal gets to the EGR valve. the temp switch opens up at a certain temp to pass the vacuum signal, so the EGR doesn't start operating until the engine warms up.

if you just start disconnecting lines, you'll have a vacuum leak. You need to do it like Brian Carlton shows in his post.

the only concern is that if your state requires emission testing, you may not pass. but i think that's a remote possibility.

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cbjukraine
'84 300D