DZ Holley carb info needed
			 
			 
			
		
		
		
			
			Hi, first time poster here. I picked up a used Holley carburetor and I am trying to determine if it is original equipment. It is a Holley 4 barrel, vacuum secondary List-4053, part number 3923289-DZ, with the number 992 under the list number. It appears to have the correct brass fuel block and lines. Can anyone tell me if this is an original 302 carb or did Holley make repro's with the original part numbers on them. Thanks in advance for any info, John. 
		 
		
		
		
		
		
		
			
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