I didn't think a 300 came with anything less than a 413, but I'm not deep into that era.
Forgot to mention: The 300 in the ad has CHAIN STEERING WHEEL and I assume is included in the sale. You can see where someone tried ripping the driver door off to gain access to said steering wheel.
Not a "300 Letter" car, its a "300 Sport" which is a much lesser model than the letter cars. So the 2 barrel intake is probably stock as they came with smaller engines than the true letter cars.
But even so, the sport models didn't come with a "chain steering wheel". :lol: