Greg Bender
http://www.thisoldtractor.com/gtbender
This information was gleaned from eurocarb. I meticulously recreated the table of values from a difficult to read original. Therefore, mistakes may be present. Here is a link to the original image in case you would like to scrutinize any particulars.

PHBL carburetor slide needle
Table: Slide needle series 2265 X 08 D
| Type | Value X | Characteristic expressed in millimeters | ||||
|---|---|---|---|---|---|---|
| ØA | ØB | C | ØD | E | ||
| D1 | 1 | 2.45 | 1.60 | 15.4 | - | - |
| D3 | 3 | 2.42 | 1.60 | 14 | - | - |
| D21 | 21 | 2.50 | 1.80 | 20.2 | - | - |
| D22 | 22 | 2.50 | 1.40 | 18 | - | - |
| D23 | 23 | 2.46 | 1.00 | 22 | - | - |
| D24 | 24 | 2.50 | 0.60 | 20 | - | - |
| D25 | 25 | 2.50 | 1.40 | 16 | - | - |
| D26 | 26 | 2.50 | 1.40 | 20 | - | - |
| D27 | 27 | 2.50 | 1.80 | 16 | - | - |
| D28 | 28 | 2.50 | 1.80 | 18 | - | - |
| D29 | 29 | 2.50 | 1.80 | 20 | - | - |
| D30 | 30 | 2.50 | 0.60 | 18 | - | - |
| D31 | 31 | 2.50 | 0.60 | 22 | - | - |
| D32 | 32 | 2.50 | 1.00 | 18 | - | - |
| D33 | 33 | 2.50 | 1.00 | 20 | - | - |
| D34 | 34 | 2.50 | 1.00 | 22 | - | - |
| D35 | 35 | 2.46 | 1.40 | 18 | - | - |
| D36 | 36 | 2.50 | 1.40 | 22 | - | - |
| D37 | 37 | 2.50 | 1.40 | 24 | - | - |
| D40 | 40 | 2.48 | 1.00 | 24 | - | - |
| D41 | 41 | 2.52 | 1.00 | 24.5 | - | - |
| D42 | 42 | 2.46 | 0.60 | 24 | 2.295 | 18 |
| D43 | 43 | 2.50 | 0.60 | 26 | 2.227 | 18 |
| D44 | 44 | 2.48 | 1.60 | 24 | - | - |
| D45* | 45 | 2.50 | 0.60 | 26 | 2.227 | 18 |
| D46 | 46 | 2.50 | 1.00 | 24 | - | - |
| * Constructed of anodized aluminum | ||||||