For a numbers matching car restoration, a lot of it is about the numbers. So, here are the numbers and codes and to show how they all fit together.
It starts with the Protect-O-Plate

Which matches info of the VIN and matches up with what the cowl tag tells us

12D - build date, fourth week of December 1964
65 - 13837 - 1965 Malibu SS V8 sport coupe
KAN - Built at the Leeds, Kansas assembly plant
8125 - body sequence number at the Kansas plant
792 - white bucket seat interior
N-N - Madeira Maroon paint
Group 1:
W - tinted windshield (this was actually coded wrong as the car for some reason has tinted glass all around)
Group 2:
L - 4-speed transmission
P - Comfort and Convience Group (Day/Night Mirror, two-speed wiper with washer)
S - Rear antenna
R - Rear speaker
Group 3:
C - Padded dash
Group 5:
W - Deluxe front seat belts with retractors
The engine CON VIN and build date. The build date is December 14.

The transmission CON VIN and build date. The build date is December 22.


Carburetor numbers
3863150 (Chevy part number)
LIST 3043 (Holley LIST number)
484 (build date, 1964 - August - 4th day)

Alternator numbers
1100693 (Chevy part number)
4K4 (build date, 1964 - October - 4th day)

Starter
1107320 (Chevy part number)
4M4 (build date, 1964 - December - 4th day)

Distributor
1111071 (Chevy part number)
4 D 27 (build date, 1964 - April - 27th day)


Even the jack hook has unique identifying stampings.