So I have a 1983 Brat that I have had a ton of work done on. It finally doesn't leak oil and it runs great. The EA81 in it only has a little over 150,000 miles on it, but all of the ports that have anything to do with the ERG system (or any other emissions control system) have been plugged with bolts and welded shut. The previous owner did all of that. I don't know if that has any relevance, but anytime the windows are down you can smell exhaust (at least I think it's exhaust) really really strongly. I can be going 70-80 mph on the freeway, but if the windows are down I can still smell exhaust.
What could be causing this? Surely, although it is an old car, not all old cars smelled like this. Is there an exhaust leak somewhere between the outtake and the muffler?