1) what is the best way to flush out my AC for my new compressor and condensor?

2) what all can i block off on my intake? egr valve? and?
and what are the best ways to do it?

 

Well the a/c system should be done at a shop that is qualified to do that kind of work.And yes you can remove the EGR,just remove the 2 bolts holding it on and use the gasket as a pattern to make a block off plate and bolt the plate on in place of the EGR and also use a bolt or something to block the vacume line that connects to the EGR.