Considering the above mentioned photo the just take off going straight down on all four ITBs may be the outlet from the little gap just because of the throttleplate (on my ITBs there is not any vacuum there - i.e. worthless) Should it sit within the throttle opener bolt at https://devinbeedc.targetblogs.com/35114107/not-known-factual-statements-about-4age-20v-itbs