regularcab2500
Senior Member
Yes holley has been making oem carbs for decades. From the offey on the amc motors to the magnum engines at least in my truck. My fifth ave has a holley 6280 feedback and before that the la engines used 2280s which were normal carbs. While they are kniwn for performance parts this indicates to me he certainly does have an la block 5.9 and thats a 727 trans pan for sure.I might be wrong, but that doesn't look factory at all. Holley makes performance aftermarket parts. I've never seen one of their products used in production of any manufacturer.
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