Thanks guys !
I do not remember where or which mopar I got this off of.. it's been in storage for many years.. but it was all complete and appeared to be a good used carb so I installed it on the dart..
I never thought of blowing out the rod tubes or check the orifices to jet size..
I never checked the vacumn on the 273 yet..
intake is a ld4b not modified.
here is apic of the carb ..
Another thing is somone epoxied up one air screw hole on the bottomside of carb. what's up with that you think?