Does a original 75 dart swinger with a 318 have EGR?

Interesting -- I learn something new every day! Factory manuals disagree at least in part; there is an EGR valve called out for 400-4bbl applications (p/n 3671 420, not used on any other application). None called out for the 340, though there are two for the 360 (California vs. 49-state), one for the 318, and one for the 440. There are some additional valves listed as "8 cyl" without a displacement spec; I'll dig out my '73 emissions manual (w/details on each configuration spec) and see what it's got to say.