is this a 2v or 4v carb? Stock Holly's were mainly on high performance engines of the late '60s and on the 460 truck engines in the '70s. There were quite a few Holley industrial carbs in the C, H, and F medium duty trucks. But these have speed govenors.
Got any dates or part numbers on this mystery Carb?
good luck finding one in a boneyard. unless you get there when the vehicle gets dropped on the ground, don't expect to find a good carb still there a day later. The last time I knew that I was looking at a 390 cfm Holley 4V was over 15 years ago at a swap meet.
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