I give up. Rebuilding an AVS for my 69 Roadrunner. The illustration mentions venture vent sleeves (2) and there are two small rubber rings in the kit. It's not at all apparent to me how or where they go on the venturi. Search online didn't help me much.

Can anyone educate me on these please? I've never run into this before, although I admit all my exposure to date has been on AFB's. Trying to get the thing assembled but want to make sure I'm doing it properly.

Thanks in advance.