225 Air cleaner to carb spacer missing?

I too thought that looked unlike a normal 1968 Holley 1920. Perhaps a Holley 1945, which is likely better. If near me, I have a 74 air cleaner you can have, plus the air heater stuff for faster warm-ups.
Thanks Bill. Unfortunately I'm in SoCal. I'll PM you next week in the case I can't locate one local.