model 44/45 is an EmCon (Emision Control) carb idd for 1.6 so you have to stick with the original E. Tube otherwise they are never going to work properly. Normal DCOE´s (No EmCon carb) use a total diferent E. Tubes, so the E. Tubes are not interchangable between EmCon carb and No EmCon carb (any number above DCOE32 is an EmCon carb)
Nearly right. 33's, 34's, 35's, 70/71's, 90/91's aren't true Emission Control carbs either.
1963 Giulia Ti Super Rep