EGR cooling?
Having trouble passing smog (high NOx) on a carbed pickup that uses EGR.
Year, model, engine, transmission, emissions spec (Federal or California], how many miles on it? What mods aside from your head-mill, what carb, what ignition setup, what is your stock or non-stock exhaust system configuration, etc? Details, man, details!
What are your HC, CO, and NOx numbers vs. the allowable standards?
I need more EGR or cooler EGR as I milled the head a little more than recommended.
And/or less ignition advance...
Would it make a lick of difference if I ran my EGR through a trans cooler?
Not at all.
diesels have water to air coolers
Diesel EGR (diesel emission control at all) is a whole different ballgame vs. gasoline.
would it make more sense to just get a larger EGR valve
Maybe, maybe not. Need more detailed info on exactly what you're running and how it's failing!
