My 84' wagon had all of the smog stuff removed before I bought it, everything, so I've been studying the desmog diagram and wondering what I should put back on. I put a non-USA carb on it and it had headers and an older style of intake manifold w/no egr hole on it. I've already hooked the HAI back up and the dizzy advance per the diagram. The vent for the dizzy cap runs straight to the air cleaner so there is no VCV or gas filter, both BVSV's are gone and there is nothing left of the fuel tank vent system except the charcoal canister and the hard lines. The cat is gone and the wires for the thermo sensor are just hanging underneath. My primary concern is anything that would help w/cold weather operation, I do have a liquid heat riser kit for the intake I just haven't installed it yet. Any thoughts would be helpfull.