FYI, I was at Calgary Pick-A-Part today and say a Ford engine with a 4 barrel intake. I think it was a 460 but am not sure. It had individual rocker arms (no shaft) and the rockers were staggered (not in line) also the thermostat came straight up from the intake. I have no use for this but someone else might.
I don't know about trim level or year but I did notice that that particualar manifold looked like it was for a Q-jet because the two back holes were very large and the two front holes were small...like a quadrajet.
BTW would the manifold on the 351 fit on my 302? Seems to me that it wouldn't.