EGR VALVE LOCATION on 1991 Chevrolet Astro

Where is the EGR valve located on 91' astro van

Asked by for the 1991 Chevrolet Astro
1 answer 1 comment
My labor guide says it takes .8h to replace so it must be straight forward. I don't have a picture as to its location. maybe look at www.rockauto.com, they usually have good illustrations of the parts and when you see a picture of the part it may help locate it.
Thanks I'll check it