Engine Decoding HELP!!!

Is there a 7 under the F on the fender tag?

on the drivers side: 2806030 appears to be a 318 casting.
Could it be 2658920?
I'm not sure what the - 273 - 2 are.
10-13-66 clock at midnight/ noon: that is the casting date/time, (time is really the shift I think).
C273 is year displacement: 1967 273
12-20 is the date the engine was assembled, this date should be prior to the date on the fender tag.

Open the driver's door, the VIN is located in between the hinges.

There are also numbers stamped on the radiator support and the trunk lip, both on the driver's side.

Do you have pics you can post?