JWR,
As a newbie, perhaps you are not aware the Cleveland thermostat is NOT what all the other Ford small blocks use. Parts counters will often have just one number, and you'll be sold a Windsor unit instead of the proper Cleveland unit. They fit fine, but they do not function fine.
Are you sure you got a Cleveland unit?
Search the archives here for photos of the difference, or perhaps someone with them saved can repost them?
Larry
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