The 1980 3.3 could either have the Holley 1945 or the 1946 carb installed. Both, however are very limited in their capabilities. But, as PanamaRed pointed out, if it's running fine, then don't touch it.
By the way, which chevy carb is on that '85 and how much better does it run??
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Jeremy B.
"Unique" 80 Hatchback
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