I have a 1974 350 with 3 speed manual. It has a 2bbl rochester carb. I purchased a used quadrajet from a 1978 350 (from junk yard). I took both the carb and intake manifold. Now when I compare to what I have on the truck, I see the intake with the 2bbl has an EGR value, but I do not see where to attach that on the 4bbl? I did not pay attention at the junk yard! Is there a different location? Will I have to go back and pull the EGR from the yard? I am a newbie and any help is appreciated.