Thanks Gadge

Must be a 3L then, since there isn't a bush and washer. I have seen a few carbs that have "victa" cast into the main body near where the sliding vane (attached to throttle cable) inserts into the body. like this one. Whereas others (like mine) are just blank. Maybe it was a supplier difference, or maybe the carb was being used by another engine manufacturer? Like how Nissan sanded off all the visible GM logos in the early production Pulsars (the ones that used the Holden Camira engine). Although another company using a victa carb is highly unlikely.

Regards
Tyler