[coronan]

I'd like to dabble with EGR mods first beginning with EGR cooling. For the sake that i have an archaic 80 car and no cooler. Rather than complicate my cooling system i'd rather have an air cooled heat exchanger by means of tapping the exhaust pipe further down stream.

Should get my egr source at a medium temp in front of the cat or after the cat at the coldest point. I plan to return it to the engine with 5 - 10 feet of copper tubing. I understand it should not be cooled too much.

My main question is should I take advantage of unburned combustibles before the cat or go for max cooling and keep the intake charge dense???

Thanks!