My turn to ask for help with a Holley.

UPDATE
Got er done except for the missing bowl gasket, secondary accelerator pump diaphram and accelerator pump diaphram check valve.
All missing from a new verified correct unopened Mr. Gasket kit.:BangHead::bs_flag:





A friend is fairly busy and has two carbs that are acting up and he asked if I could help.
The one in question is a Holley 9379 750 double pumper competition carb with four corner idle jets.

It's been forever since I rebuilt a Holley, and I thought I would ask if there are any special things to look out for.

Thank you.