Torqueflight 727 coming soon

There are numbers on the rail just above the pan that should start with PK. There is a series of I believe 7 numbers that is the part number and the next 4 digits will be the date code in the 10,000 day calendar. I am looking for a late 70 or early 71 727 for my 340. Those 4 numbers should be ranging from 3400-3850.

thanks Jim