I just went through "hell" in CA getting my '84 Ford F150 smog legal. Be sure to check the rules where you live....first. The truck now runs better than ever is not putting out bad emissions. The new catalytic converters were the answer and all is well now.
But, it would be possible to remove all the emission stuff and put a four barrel on the truck. The question is why?
You have a computer under the dash, it will be giving out codes that the stuff is not working. So, you will not have any diagnostic help in the future with problems.
If you are looking for more HP etc, a legal RV cam change or just a good tuneup would help.
The 2 bbl carb on the truck will handle a lot more HP than was there in '83, my truck had 133 HP when new! Probably down to 95 HP now but it still runs fine and get the stock quoted mileage of 11+ MPG on the highway.
If you want the cheapest way to go, change to a larger 2 bbl Motorcraft 2150 that is setup correctly.
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