The take-off spacer you show is FORD 2100 dedicated in that the spacer matches the 2100 CARB base plate shape.
The H2300 spacer should work if there is no interference at the rear of the carb/intake carb pad.
Listen to TED. The replacement spacer should work perfectly.
EDIT-
Unless the opening on the FORD 2100 spacer throttle bores exposes a vacuum inlet on your particular 2100. The carb base gasket will give you a clue.
(Covering my butt here ...
)
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