carb cleaning

Hi, found a load of crud in the float chamber of my carb today. Looks like lots of fine sediment. Tried to clean all the jets I could find, but must have missed one because my bay still barely starts if at all. Coughs and splutters and stalls etc. Does anybody know which jets I should check...

One of my Dell 34 FRD's is not producing fuel . When I look down the attached carb and press the accelerator lever no fuel jets out from anywhere. (unlike the other side) Presume his means that there is a blockage somewhere. The dells have been sitting around for two years, I have just got...