Quote: John your 69's are typical, the early 68 AVS carbs had the single adjuster, most later 68's had two adjusters as your 69's do. I have also seen some 69's with the single adjuster, not really sure why they came both ways.
I always thought is was a auto/4spd thing Both my late 4426's have the single adjuster While my mid 68 4401 had two adjusters.
