Wheez sound at shut off

It’s a hot day in Alabama and I just got home from work where I take the freeway doing 60-80 mph, I get home and turn my car off and there’s this wheeze as the final noise as it’s shutting off. I don’t think it’s a belt because it’s not a high screech, nor anything internal because it’s not a metallic sound either. The closest noise that I can describe it as is Michael Pena’s “how long you been wit her” fart noises from eastbound & down.

Plan is to let it cool off in the garage and try later. If you’ve had this issue too please let me know!

For the old heads that need everything to go off of: it’s a 1974 260z with flat top carbs and the A/C removed. It was also white but repainted black before I bought it if that helps too.