65/66 Big Block Carb ID Help

[hep1966]

FYI, the same post is on chevytalk.

I've been offered some 65/66 parts but I need some help to make sure they are correct.

The first carb is stated as being for a 66/425 Corvette. The following codes are on the carb, either stamped or cast.

3886101
LIST - 3247
5B1
6R 2829 B
P10

The second carb is stated as being for a 65 396 Corvette.
The following codes are on the carb, either stamped or cast.

LIST - 4781
0153
7049
4781
6R 3738 B
P-32
2A
There is a mark of "549D" that appears to be stenciled or inked on the carb.

He also has a GM grill for a 66, still in the box but the box has been opened. A used shifter and linkage is available too.

I'm hoping that the carbs are correct and I'll be looking for a way to ID the carbs but thought it might be faster to post here.

Thanks for any help that you can provide.