thanks for the answers guys!
woodsnake, you`re right the carb is nothing special, but when looking into my holley book the data result is this: [carb], [primary block number]
4776-1, 34R8519AS
4776-2, 34R8519AS
4776-3, 34R8519AS
4776-4, 34R8519AS
4776-5, 34R8519AP (my carb)
4776-6...