DCO50 weber carb choke, venturi tuning explanation on my 437 bbc part1

i decided to explain what i am constantly on about when i am tuning my Weber DCO50 carbs for my 427 big block... this is part 1....simply because after i stopped the camera i decided to explain the jets and emulsion tubes so that is part two. this is all on the fly, no script, no prep and no third hand holding the camera so the recording and quality is wonky ..but you will get the idea. if anyone wants a full description of the issues i had, what i did to try and solve them and what i finally did, let me know and i will do a longer video. I can also be found on the corvetteforum.com