Hello I just bought a used Holly 4160 600cfm carb. I just finished rebuilding it and after trying to tune it on the car I noticed fuel dripping from the secondary throttle shaft on both sides of the carb. I had this happen on a carter carb but that carb stoped leaking. The Holly however leaks twice as much. Is this something that is a common problem, is this something I can fix? What do I do? :confused: