360 Plug help

I’m looking at pics on my phone, so the scaling isn’t great, but the top view of the carb looks like it might actually be a 650.
The venturi diameter will tell the tale.
The 650 are 1.28” diameter
The 750 are 1.40” diameter

Also, 70/78 jetting is stock for the 650.
Measuring the top venturi looks like they measure the 1.28"

PXL_20240919_155001118.MP.jpg