So I have this Rochester 2-Jet 2bbl carb sitting here in my living room, and I'm planning to sit it on top of the single barrel 230 intake with a self made adapter. Have not started work yet, but it just occurred to me that this 2-jet has no ported vacuum fitting. Only a large manifold vacuum fitting at the bottom, and another smaller intake vacuum fitting below the fuel bowl that runs through to below the throttle plates.
What gives? Should I try to run manifold vacuum for the distributor? I never understood why anyone would want to.
Now to see a carb with NO ported vacuum available is a first to me.
I have other options too, Holley 2280 with the same narrow bolt pattern. I have one in rough shape and another one coming. Should end up with one good rebuilt 2280, and those have vacuum fittings out the yin yang, like the original MonoJet I'm running now.
