carburetor mounting question

[6T6/7]

Did the assembly line installation of the carburetor to intake manifold use anything other than nuts, such a lock washers? Or just nuts only? Think I've seen some variety with this. In particular, I'm looking at a '66 GT350, but thinking this question is more generic in nature, so placed it here.

[Royce Peterson]

Just the nuts except the driver side rear which has the return spring bracket under the nut. No washers of any kind.

[6T6/7]

Thanks Royce