My 273 turned out to be a 318...what did I buy?

he intake someone will recognize.

Looks like a later, cast iron 4bbl intake. (you can see the choke well on the passenger side) so might be a 67 (ish). @serodgers66 , there should be a casting number on the intake that'll clue you in. Likewise, if you are curious, you can pull a valve cover and see which heads are on there. If it's running good.. keep it going!