1984 280e Fuel Distributor Flow Adjustment Question

[ccb_v2]

Hi there. Quick question about the adjustable screws (part 730...ish six of them) that move the six sleeves controlling the flow rate up and down. How far into the distributor should they be when measured from the cap screw's distributor mating surface? What should their depth be or is there a certain amount of fuel that it should pump out a WOT and idle that I can measure to try and set it?