[Tom Howland]

Have you checked all 3 venturi’s to make sure the holes are in the exact same location. I am having problems because my 3 progression holes are not the same. The extra third hole has been drilled in different locations. I.e., 2 o’clock, 3 o’clock, 4 o’clock. I have 4 IDA’s. My symptoms are different than yours. I have a lot of popping when in the idle/transition circuit. Try a fourth hole. If that doesn’t work, fill it and try something different.