Another thing I have been experimenting with on these carbs is the springs in the governor setup. I have cut the big spring in half and put one half on the lifter and the other half on the diaphragm and this seem to work fine. This seems to equalize the pressure on both sides and allows the poppet to move freely. To be honest I was running out of small springs that made me try this mod and the shorter spring under the diaphragm cap reduces the tension on it which is another good thing. Once set up these are the best carby I have ever worked on and I have worked on a few over the years
