82 Silverado EGR system
 

Ok so I picked up an 82 with a 350 from some bygone era in it. EGR pulled and blocked off, I don't mind messing with timing and sucking a little more gas for my trouble but I just want to set the evap correct. After looking at the one line going to the cannister and the others leaving I wonder shouldn't there be more to it? In the EPA guide over the radiator it shows a 305 with EGR and the full system.

Does anyone know which ports should be bocked off or set right? It runs but I don't want fumes or anything harmful to the motor.

Thanks if you can help