My dad just listed one of his Holley carbs on ebay today
click here
The numbers are as follows P/n 3863150 List 3043 Style 4150 with metering blocks primary # 4379 & secondary # 4099.
The GM parts list shows this to be for a 1965 Chevelle RPO L79 327 cu in 350 HP W/sp H/ Performance.
