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Apologies to all here as its not a Porsche but smog stuff is of interest to many old car people in CA. I can offer generic suggestions as your Jeep is an AMC (All Makes of Cars) and has GM, Ford and Chrysler technologies.
Obviously getting too much fuel by the numbers. Probably smells like rotten eggs out the tailpipe too cause the cat is cooking. Even the low speed CO is high. A high float level in the carb can cause these readings. Did you rebuild the carb? If yes, check the float level again. You likely have a computer controlled carb with an O2 sensor but I would not replace the O2 unless it is not switching. With such a rich mixture, it may just reat high voltage around .8 or .9 v all the time.
Your engine swap has me suspicious. I would check the wiring to the carb, locate a Haynes manual or similar to check if the needle solenoid for the carb is functioning. You will need a dwell meter but if it is clicking you can "assume" its working and check the next thing. Check the hoses from the evaporative canister to the carb. There is usually is a vacuum operated purge valve in between and if it is missing or stuck open (incorrect vacuum hose connected), it will allow excess fuel vapors to be sucked into the engine (intake) causing a rich condition. You really need either a CO meter or a tech that has one and can make corrections and adjustments while watching the CO readings. I would pinch off the evap line I mentioned and see oif the CO readings go down. Don't waste money on distributors or ignition parts. Your problem it too much fuel is entering the engine and not lack of spark which would cause VERY high HC. I'm sure your HC is high too but below the cut points or else you would have failed on that reading too. HOpe this gives you some direction.
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