If you have a little mill or a friend with a small mill, it isn't much effort to bore out the head size of that Edelbrock to match the rings on 848 head. You won't need the adaptor rings if you do that and a little grinding inside the manifold will smooth up the entry to the rings. The inside runners of that manifold are the same size as the inside of the head runners and the 235 manifold rings. Use Carter YF964S carburetors as they have a little larger venturi diameter, at 1 7/32", than do some of the other 216 carbs. The 235 version of the Edelbrock manifold has the words power glide above the center runner. I have the 216 dual set up ready to go on my 261.
Dave
