Ya might want to check the pt# on that manifold. and do some research It's been a lot of yrs ago and my memory is not what it was but I was in the emissions industry for many yrs and I think this manifold is 1965 or 1966 beacuse in 1967 there was the predessor to the egr was called a gulp valve and had a large port behind the carb. and then I think in 69 or 70 the came out with the e.g.r. that used that port. And the manifold in the pic. does not have that port If iI am right this part could have some value to some of the restorer guy's ( just a thought might be worth checking out.) OH! b.t.w. that port that has te paint burned off is a carb heat port to speed up the warm up of the carb when cold beacuse a cold eng requires a much richer A/f mixture and that increases the co emissions