4160 750 holley metering plate spacer? Missing it

The 3310-2 in my first post has a power valve cavity on the secondary side which looks like this and in this case you need that extra sealing plate for your version Holley. it is sold as Holley part number 108-122502B2E94-C0C4-46CA-8799-1856437D5581.png 19CEB949-3BC1-465B-AB1D-3FD9C0440737.jpeg